diff --git a/include/boost/fusion/container/map/convert.hpp b/include/boost/fusion/container/map/convert.hpp
index 5bb6fc9d..bc3fa053 100644
--- a/include/boost/fusion/container/map/convert.hpp
+++ b/include/boost/fusion/container/map/convert.hpp
@@ -42,6 +42,30 @@ namespace boost { namespace fusion
         typedef typename result_of::as_map<Sequence const>::gen gen;
         return gen::call(fusion::begin(seq));
     }
+
+    namespace extension
+    {
+        template <typename T>
+        struct convert_impl;
+
+        template <>
+        struct convert_impl<map_tag>
+        {
+            template <typename Sequence>
+            struct apply
+            {
+                typedef typename
+                    result_of::as_map<Sequence>::type
+                type;
+
+                static type call(Sequence& seq)
+                {
+                    typedef result_of::as_map<Sequence> gen;
+                    return gen::call(fusion::begin(seq), fusion::end(seq));
+                }
+            };
+        };
+    }
 }}
 
 #endif