diff --git a/third_party/flatbuffers/BUILD.bazel b/third_party/flatbuffers/BUILD.bazel
index 3b21a73154a..1ee46f05235 100644
--- a/third_party/flatbuffers/BUILD.bazel
+++ b/third_party/flatbuffers/BUILD.bazel
@@ -112,6 +112,7 @@ filegroup(
         "python/flatbuffers/number_types.py",
         "python/flatbuffers/packer.py",
         "python/flatbuffers/table.py",
+        "python/flatbuffers/util.py",
     ],
 )