diff --git a/sky/engine/core/painting/RRect.dart b/sky/engine/core/painting/RRect.dart
index 40ef79019cd..0ec56bd28c0 100644
--- a/sky/engine/core/painting/RRect.dart
+++ b/sky/engine/core/painting/RRect.dart
@@ -1,3 +1,7 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 part of dart_ui;
 
 // A rounded rectangle with the same radii for all four corners.