--- a/src/core/object-factory.h	Mon May 26 20:44:19 2008 -0700
+++ b/src/core/object-factory.h	Mon May 26 20:48:54 2008 -0700
@@ -93,7 +93,7 @@
  * \brief hold objects of type ns3::ObjectFactory
  */
 
-ATTRIBUTE_HELPER_HEADER_2 (ObjectFactory);
+ATTRIBUTE_HELPER_HEADER (ObjectFactory);
 
 } // namespace ns3