diff --git a/include/boost/detail/endian.hpp b/include/boost/detail/endian.hpp
index 524435d..4cc81ad 100644
--- a/include/boost/detail/endian.hpp
+++ b/include/boost/detail/endian.hpp
@@ -1,3 +1,7 @@
+// (c) Copyright John Maddock 2001
+// Distributed under the Boost Software License, Version 1.0. (See accompany-
+// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
 /*
  * Copyright (c) 1997
  * Silicon Graphics Computer Systems, Inc.