diff --git a/doc/html/rst.css b/doc/html/rst.css
index c9b14aa..c2279f2 100755
--- a/doc/html/rst.css
+++ b/doc/html/rst.css
@@ -1,3 +1,8 @@
+/* Copyright David Abrahams 2006. 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) 
+*/
+
 @import "../../../../rst.css";
 
 div.section div.section div.section dl {