diff --git a/rust/private/extensions.bzl b/rust/private/extensions.bzl
index c20905c..b142108 100644
--- a/rust/private/extensions.bzl
+++ b/rust/private/extensions.bzl
@@ -4,6 +4,7 @@
 load("//bindgen:repositories.bzl", "rust_bindgen_dependencies")
 load("//crate_universe:repositories.bzl", "crate_universe_dependencies")
 load("//proto/prost:repositories.bzl", "rust_prost_dependencies")
+load("//proto/protobuf:repositories.bzl", "rust_proto_protobuf_dependencies")
 load("//rust/private:repository_utils.bzl", "TINYJSON_KWARGS")
 load("//test:deps.bzl", "rules_rust_test_deps")
 load("//tools/rust_analyzer:deps.bzl", "rust_analyzer_dependencies")
@@ -20,6 +21,7 @@
 
     direct_deps.extend(crate_universe_dependencies())
     direct_deps.extend(rust_prost_dependencies(bzlmod = True))
+    direct_deps.extend(rust_proto_protobuf_dependencies(bzlmod = True))
     direct_deps.extend(rust_bindgen_dependencies())
     direct_deps.extend(rust_analyzer_dependencies())
     direct_deps.extend(rust_wasm_bindgen_dependencies())