diff --git a/pw_unit_test/test.cmake b/pw_unit_test/test.cmake
index 3fce6de..08e268e 100644
--- a/pw_unit_test/test.cmake
+++ b/pw_unit_test/test.cmake
@@ -179,7 +179,7 @@
     PRIVATE_DEFINES
       ${arg_PRIVATE_DEFINES}
     PRIVATE_COMPILE_OPTIONS_DEPS_BEFORE
-      ${PRIVATE_COMPILE_OPTIONS_DEPS_BEFORE}
+      ${arg_PRIVATE_COMPILE_OPTIONS_DEPS_BEFORE}
     PRIVATE_COMPILE_OPTIONS
       ${arg_PRIVATE_COMPILE_OPTIONS}
     PRIVATE_LINK_OPTIONS