diff --git a/include/boost/fusion/sequence/convert.hpp b/include/boost/fusion/sequence/convert.hpp
index 52648101..e7a2e38b 100644
--- a/include/boost/fusion/sequence/convert.hpp
+++ b/include/boost/fusion/sequence/convert.hpp
@@ -20,11 +20,11 @@ namespace boost { namespace fusion
         template <typename Tag, typename Sequence>
         struct convert
         {
-            typedef typename extension::convert_impl<Tag> gen;
-
             typedef typename
-                gen::template apply<Sequence>::type
-            type;
+                extension::convert_impl<Tag>::template apply<Sequence>
+            gen;
+
+            typedef typename gen::type type;
         };
     }