diff --git a/tools/check_source_files_in_bazel_build.py b/tools/check_source_files_in_bazel_build.py
index 5717916..c955fe9 100755
--- a/tools/check_source_files_in_bazel_build.py
+++ b/tools/check_source_files_in_bazel_build.py
@@ -166,6 +166,7 @@
     ).stdout
 
     bazel_files = [Path(f) for f in bazel_file_list.splitlines()]
+    bazel_files = [f for f in bazel_files if not f.is_relative_to("cmake")]
     return bazel_files