diff --git a/fit/combine.h b/fit/combine.h
index bd215f2..d4cd35a 100644
--- a/fit/combine.h
+++ b/fit/combine.h
@@ -44,6 +44,7 @@ struct combine_adaptor_base<seq<Ns...>, F, Gs...>
     template<class... Ts>
     struct combine_result
     : result_of<const F&,  result_of<const Gs&, id_<Ts>>...>
+    // : result_of<const F&,  id_<Ts>...>
     {};
   
     template<class... Ts>
@@ -63,7 +64,12 @@ struct combine_adaptor
 : detail::combine_adaptor_base<typename detail::gens<sizeof...(Gs)>::type, F, Gs...>
 {
     typedef detail::combine_adaptor_base<typename detail::gens<sizeof...(Gs)>::type, F, Gs...> base_type;
-    FIT_INHERIT_CONSTRUCTOR(combine_adaptor, base_type)
+    
+    template<class... Ts>
+    constexpr combine_adaptor(Ts&&... xs) 
+    : base_type(fit::forward<Ts>(xs)...)
+    {}
+    // FIT_INHERIT_CONSTRUCTOR(combine_adaptor, base_type)
 };
 
 FIT_DECLARE_STATIC_VAR(combine, detail::make<combine_adaptor>);