diff --git a/cpp/msgpack/pack.hpp b/cpp/msgpack/pack.hpp
index 3a68aa68..ee906900 100644
--- a/cpp/msgpack/pack.hpp
+++ b/cpp/msgpack/pack.hpp
@@ -1,7 +1,7 @@
-1//
+//
 // MessagePack for C++ serializing routine
 //
-// Copyright (C) 2008-2009 FURUHASHI Sadayuki
+// Copyright (C) 2008-2010 FURUHASHI Sadayuki
 //
 //    Licensed under the Apache License, Version 2.0 (the "License");
 //    you may not use this file except in compliance with the License.