Index: boost/mpl/set/aux_/numbered_c.hpp
===================================================================
--- boost/mpl/set/aux_/numbered_c.hpp	(revision 51856)
+++ boost/mpl/set/aux_/numbered_c.hpp	(working copy)
@@ -23,9 +23,9 @@
 #define i_ BOOST_PP_FRAME_ITERATION(1)
 
 #   define AUX778076_SET_C_TAIL(set, i_, T, C) \
-    BOOST_PP_CAT(BOOST_PP_CAT(set,i_),_c)< \
+    typename BOOST_PP_CAT(BOOST_PP_CAT(set,i_),_c)< \
           T BOOST_PP_ENUM_TRAILING_PARAMS(i_, C) \
-        > \
+        >::item_ \
     /**/
 
 template<