diff --git a/doc/declval.qbk b/doc/declval.qbk
index 910aaf6..22ba11e 100644
--- a/doc/declval.qbk
+++ b/doc/declval.qbk
@@ -1,6 +1,6 @@
 [/
  / Copyright (c) 2008 Howard Hinnant
- / Copyright (c) 2009-20012 Vicente J. Botet Escriba
+ / Copyright (c) 2009-2012 Vicente J. Botet Escriba
  /
  / Distributed under the Boost Software License, Version 1.0. (See accompanying
  / file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)