diff --git a/include/nana/gui/detail/widget_content_measurer_interface.hpp b/include/nana/gui/detail/widget_content_measurer_interface.hpp
index cbb3cb47..00f92ce8 100644
--- a/include/nana/gui/detail/widget_content_measurer_interface.hpp
+++ b/include/nana/gui/detail/widget_content_measurer_interface.hpp
@@ -1,7 +1,7 @@
 /*
 *	Widget Content Measurer Interface
 *	Nana C++ Library(http://www.nanapro.org)
-*	Copyright(C) 2003-2016 Jinhao(cnjinhao@hotmail.com)
+*	Copyright(C) 2003-2017 Jinhao(cnjinhao@hotmail.com)
 *
 *	Distributed under the Boost Software License, Version 1.0.
 *	(See accompanying file LICENSE_1_0.txt or copy at