diff --git a/include/boost/type_traits/is_abstract.hpp b/include/boost/type_traits/is_abstract.hpp
index d88c143..3934e68 100644
--- a/include/boost/type_traits/is_abstract.hpp
+++ b/include/boost/type_traits/is_abstract.hpp
@@ -19,7 +19,7 @@
 // Compile type discovery whether given type is abstract class or not.
 //
 //   Requires DR 337 to be supported by compiler
-//   (http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/cwg_active.html#337).
+//   (http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#337).
 //
 //
 // Believed (Jan 2004) to work on: