diff --git a/.licenserc.yaml b/.licenserc.yaml
index 042769f140..a189f6bceb 100644
--- a/.licenserc.yaml
+++ b/.licenserc.yaml
@@ -59,6 +59,7 @@ header:
     - 'src/butil/atomic*'
     - 'src/butil/auto_reset.h'
     - 'src/butil/base64.*'
+    - 'src/butil/base64url.*'
     - 'src/butil/base_export.h'
     - 'src/butil/base_paths.cc'
     - 'src/butil/basictypes.h'
diff --git a/src/butil/base64url.cc b/src/butil/base64url.cc
index 934d721a52..f782f33dcc 100644
--- a/src/butil/base64url.cc
+++ b/src/butil/base64url.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2015 The Chromium Authors. All rights reserved.
+// Copyright 2015 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.
 
diff --git a/src/butil/base64url.h b/src/butil/base64url.h
index 30fd647f35..438f6b7fa4 100644
--- a/src/butil/base64url.h
+++ b/src/butil/base64url.h
@@ -1,6 +1,6 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 2015 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
+// found in the LICENSE file.
 
 #ifndef BASE_BASE64URL_H_
 #define BASE_BASE64URL_H_
diff --git a/test/base64url_unittest.cc b/test/base64url_unittest.cc
index e8e09ac787..4995b162a0 100644
--- a/test/base64url_unittest.cc
+++ b/test/base64url_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2015 The Chromium Authors. All rights reserved.
+// Copyright 2015 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.