diff --git a/include/boost/python/object/make_holder.hpp b/include/boost/python/object/make_holder.hpp
index 9d33dce4..a2c013c4 100644
--- a/include/boost/python/object/make_holder.hpp
+++ b/include/boost/python/object/make_holder.hpp
@@ -61,7 +61,7 @@ struct make_holder<N>
         typedef typename mpl::begin<ArgList>::type iter0;
         
 #  define BOOST_PP_LOCAL_MACRO(n)               \
-    typedef typename iter##n::type t##n;        \
+    typedef typename mpl::apply0<iter##n>::type t##n;        \
     typedef typename forward<t##n>::type f##n;  \
     typedef typename mpl::next<iter##n>::type   \
         BOOST_PP_CAT(iter,BOOST_PP_INC(n)); // Next iterator type