diff --git a/MODULE.bazel b/MODULE.bazel
index 4ba0610..a4f20d1 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -97,6 +97,8 @@
 register_toolchains("@rust_toolchains//:all")
 
 # Protobuf Toolchains
+register_toolchains("//build/toolchain/protobuf:protoc_sources_toolchain")
+
 register_toolchains("@rules_rust_protobuf//:default_proto_toolchain")
 
 register_toolchains("//build/toolchain/rust-efi:prost_efi_toolchain")