diff --git a/include/boost/function/function_template.hpp b/include/boost/function/function_template.hpp
index 202015b..6f073ce 100644
--- a/include/boost/function/function_template.hpp
+++ b/include/boost/function/function_template.hpp
@@ -282,7 +282,8 @@ namespace boost {
     BOOST_FUNCTION_FUNCTION(Functor BOOST_FUNCTION_TARGET_FIX(const &) f
 #ifndef BOOST_FUNCTION_NO_ENABLE_IF
                             ,typename detail::function::enable_if<
-                                        (!is_same<Functor, int>::value),
+                            (::boost::type_traits::ice_not<
+                             is_same<Functor, int>::value>::value),
                                         int>::type = 0
 #endif // BOOST_FUNCTION_NO_ENABLE_IF
                             ) :
@@ -329,7 +330,7 @@ namespace boost {
     template<typename Functor>
 #ifndef BOOST_FUNCTION_NO_ENABLE_IF
     typename detail::function::enable_if<
-               (!is_same<Functor, int>::value),
+               (::boost::type_traits::ice_not<is_same<Functor, int>::value>::value),
                BOOST_FUNCTION_FUNCTION&>::type
 #else
     BOOST_FUNCTION_FUNCTION&
@@ -577,7 +578,7 @@ public:
   function(Functor f
 #ifndef BOOST_FUNCTION_NO_ENABLE_IF
            ,typename detail::function::enable_if<
-                       (!is_same<Functor, int>::value),
+                       (::boost::type_traits::ice_not<is_same<Functor, int>::value>::value),
                        int>::type = 0
 #endif
            ) :
@@ -602,7 +603,7 @@ public:
   template<typename Functor>
 #ifndef BOOST_FUNCTION_NO_ENABLE_IF
   typename detail::function::enable_if<
-                      (!is_same<Functor, int>::value),
+                      (::boost::type_traits::ice_not<is_same<Functor, int>::value>::value),
                       self_type&>::type
 #else
   self_type&