diff --git a/utils/bazel/llvm-project-overlay/.bazelignore b/utils/bazel/llvm-project-overlay/.bazelignore
--- a/utils/bazel/llvm-project-overlay/.bazelignore
+++ b/utils/bazel/llvm-project-overlay/.bazelignore
@@ -1,2 +1,4 @@
 # Ignore the utils/bazel directory when this is overlayed onto the repo root.
 utils/bazel
+# This directory has a Bazel config
+libcxx/utils/google-benchmark