diff --git a/export_et_util.py b/export_et_util.py
index a9c743a77..074f4b905 100644
--- a/export_et_util.py
+++ b/export_et_util.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 import torch
 from build.model import apply_rotary_emb, Attention