diff --git a/include/boost/math/common_factor_ct.hpp b/include/boost/math/common_factor_ct.hpp
index 6c88636..f5d7c3e 100644
--- a/include/boost/math/common_factor_ct.hpp
+++ b/include/boost/math/common_factor_ct.hpp
@@ -1,10 +1,9 @@
 //  Boost common_factor_ct.hpp header file  ----------------------------------//
 
-//  (C) Copyright Daryle Walker and Stephen Cleary 2001-2002.  Permission to
-//  copy, use, modify, sell and distribute this software is granted provided
-//  this copyright notice appears in all copies.  This software is provided "as
-//  is" without express or implied warranty, and with no claim as to its
-//  suitability for any purpose. 
+//  (C) Copyright Daryle Walker and Stephen Cleary 2001-2002.
+//  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)
 
 //  See http://www.boost.org for updates, documentation, and revision history.