diff --git a/graph/bron_kerbosch.cc b/graph/bron_kerbosch.cc
index bc6efc8506..fcb66336f3 100644
--- a/graph/bron_kerbosch.cc
+++ b/graph/bron_kerbosch.cc
@@ -1,5 +1,15 @@
-// Copyright 2009 Google Inc. All Rights Reserved.
-// Author: lperron@google.com (Laurent Perron)
+// Copyright 2010 Google
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
 #include <algorithm>