diff --git a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirBlackBoxCodegenBasedTestGenerated.java b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirBlackBoxCodegenBasedTestGenerated.java
index 3411118..f20efc3 100644
--- a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirBlackBoxCodegenBasedTestGenerated.java
+++ b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirBlackBoxCodegenBasedTestGenerated.java
@@ -3924,6 +3924,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirReversedBlackBoxCodegenBasedTestGenerated.java b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirReversedBlackBoxCodegenBasedTestGenerated.java
index 28dbb86..c98e046 100644
--- a/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirReversedBlackBoxCodegenBasedTestGenerated.java
+++ b/analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/LLFirReversedBlackBoxCodegenBasedTestGenerated.java
@@ -3924,6 +3924,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenTestGenerated.java
index 8505345..1c2500a 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenTestGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenWithFir2IrFakeOverrideGeneratorTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenWithFir2IrFakeOverrideGeneratorTestGenerated.java
index 2e76125..9684c71 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenWithFir2IrFakeOverrideGeneratorTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirLightTreeBlackBoxCodegenWithFir2IrFakeOverrideGeneratorTestGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirPsiBlackBoxCodegenTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirPsiBlackBoxCodegenTestGenerated.java
index 82f8b99..1ee278a 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirPsiBlackBoxCodegenTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/codegen/FirPsiBlackBoxCodegenTestGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/testData/codegen/box/builderInference/issues/kt64069.kt b/compiler/testData/codegen/box/builderInference/issues/kt64069.kt
new file mode 100644
index 0000000..5c7517a
--- /dev/null
+++ b/compiler/testData/codegen/box/builderInference/issues/kt64069.kt
@@ -0,0 +1,21 @@
+// ISSUE: KT-64069
+// WITH_STDLIB
+
+// IGNORE_LIGHT_ANALYSIS
+// IGNORE_BACKEND_K1: JVM, JVM_IR, WASM
+// REASON: java.lang.ClassCastException: class java.lang.String cannot be cast to class java.lang.Void (see corresponding issue)
+
+private var enable: Boolean = true
+private val string: String? by lazy {
+    if (enable) {
+        getT()  // No warning, but class cast exception
+    } else {
+        null
+    }
+}
+
+fun <T> getT(): T {
+    return "OK" as T
+}
+
+fun box() = string!!
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/JvmAbiConsistencyTestBoxGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/JvmAbiConsistencyTestBoxGenerated.java
index d68481e..2e0cc35 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/JvmAbiConsistencyTestBoxGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/JvmAbiConsistencyTestBoxGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/BlackBoxCodegenTestGenerated.java
index 35ca0b9..d44a5e3 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/BlackBoxCodegenTestGenerated.java
@@ -3655,6 +3655,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
index 1ee694c4..1849804 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenWithIrInlinerTestGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenWithIrInlinerTestGenerated.java
index 43eafc2..d25d5a0 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenWithIrInlinerTestGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenWithIrInlinerTestGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/inlineScopes/FirBlackBoxCodegenTestWithInlineScopesGenerated.java b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/inlineScopes/FirBlackBoxCodegenTestWithInlineScopesGenerated.java
index d996d2d..1d624f8 100644
--- a/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/inlineScopes/FirBlackBoxCodegenTestWithInlineScopesGenerated.java
+++ b/compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/inlineScopes/FirBlackBoxCodegenTestWithInlineScopesGenerated.java
@@ -3901,6 +3901,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index 7b511b1..7884cd1 100644
--- a/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -3122,6 +3122,11 @@
     @TestDataPath("$PROJECT_ROOT")
     @RunWith(JUnit3RunnerWithInners.class)
     public static class Issues extends AbstractLightAnalysisModeTest {
+      @TestMetadata("kt64069.kt")
+      public void ignoreKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
       @TestMetadata("kt66272.kt")
       public void ignoreKt66272() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt66272.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsCodegenBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsCodegenBoxTestGenerated.java
index 4c4d939..78610e1 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsCodegenBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsCodegenBoxTestGenerated.java
@@ -2965,6 +2965,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6CodegenBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6CodegenBoxTestGenerated.java
index 1f5d4bc..43719a3 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6CodegenBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/fir/FirJsES6CodegenBoxTestGenerated.java
@@ -2965,6 +2965,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsCodegenBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsCodegenBoxTestGenerated.java
index 8827785..6309882 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsCodegenBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsCodegenBoxTestGenerated.java
@@ -2965,6 +2965,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsES6CodegenBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsES6CodegenBoxTestGenerated.java
index 0cf2a8e..ca736cb 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsES6CodegenBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/IrJsES6CodegenBoxTestGenerated.java
@@ -2965,6 +2965,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestGenerated.java b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestGenerated.java
index 01e09d4..fb004a8 100644
--- a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestGenerated.java
+++ b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestGenerated.java
@@ -3048,6 +3048,12 @@
         }
 
         @Test
+        @TestMetadata("kt64069.kt")
+        public void testKt64069() {
+          runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+        }
+
+        @Test
         @TestMetadata("kt65300a.kt")
         public void testKt65300a() {
           runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestNoPLGenerated.java b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestNoPLGenerated.java
index 56ca32c..bf0bd13 100644
--- a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestNoPLGenerated.java
+++ b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/FirNativeCodegenBoxTestNoPLGenerated.java
@@ -3106,6 +3106,12 @@
         }
 
         @Test
+        @TestMetadata("kt64069.kt")
+        public void testKt64069() {
+          runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+        }
+
+        @Test
         @TestMetadata("kt65300a.kt")
         public void testKt65300a() {
           runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestGenerated.java b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestGenerated.java
index ac6d09e..b322937 100644
--- a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestGenerated.java
+++ b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestGenerated.java
@@ -2990,6 +2990,12 @@
         }
 
         @Test
+        @TestMetadata("kt64069.kt")
+        public void testKt64069() {
+          runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+        }
+
+        @Test
         @TestMetadata("kt65300a.kt")
         public void testKt65300a() {
           runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestNoPLGenerated.java b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestNoPLGenerated.java
index 7bf0193..990904f 100644
--- a/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestNoPLGenerated.java
+++ b/native/native.tests/tests-gen/org/jetbrains/kotlin/konan/test/blackbox/NativeCodegenBoxTestNoPLGenerated.java
@@ -3049,6 +3049,12 @@
         }
 
         @Test
+        @TestMetadata("kt64069.kt")
+        public void testKt64069() {
+          runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+        }
+
+        @Test
         @TestMetadata("kt65300a.kt")
         public void testKt65300a() {
           runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/FirWasmJsCodegenBoxTestGenerated.java b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/FirWasmJsCodegenBoxTestGenerated.java
index 6ad9dd4..6c98f2e 100644
--- a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/FirWasmJsCodegenBoxTestGenerated.java
+++ b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/FirWasmJsCodegenBoxTestGenerated.java
@@ -2953,6 +2953,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");
diff --git a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/K1WasmCodegenBoxTestGenerated.java b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/K1WasmCodegenBoxTestGenerated.java
index 5b2f116..a86ed2b 100644
--- a/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/K1WasmCodegenBoxTestGenerated.java
+++ b/wasm/wasm.tests/tests-gen/org/jetbrains/kotlin/wasm/test/K1WasmCodegenBoxTestGenerated.java
@@ -2953,6 +2953,12 @@
       }
 
       @Test
+      @TestMetadata("kt64069.kt")
+      public void testKt64069() {
+        runTest("compiler/testData/codegen/box/builderInference/issues/kt64069.kt");
+      }
+
+      @Test
       @TestMetadata("kt65300a.kt")
       public void testKt65300a() {
         runTest("compiler/testData/codegen/box/builderInference/issues/kt65300a.kt");