diff --git a/bestflags/generation_test.py b/bestflags/generation_test.py
index a8bdf59..748a988 100644
--- a/bestflags/generation_test.py
+++ b/bestflags/generation_test.py
@@ -1,3 +1,7 @@
+# Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
 """Generation unittest.
 
 Part of the Chrome build flags optimization.