diff --git a/include/boost/fusion/algorithm/iteration/detail/preprocessed/iter_fold.hpp b/include/boost/fusion/algorithm/iteration/detail/preprocessed/iter_fold.hpp
index b86847ee..1d294a87 100644
--- a/include/boost/fusion/algorithm/iteration/detail/preprocessed/iter_fold.hpp
+++ b/include/boost/fusion/algorithm/iteration/detail/preprocessed/iter_fold.hpp
@@ -13,7 +13,7 @@ namespace boost { namespace fusion
     {
         template<typename State, typename It, typename F>
         struct iter_fold_lvalue_state
-          : boost::result_of<
+          : fusion::detail::result_of_with_decltype<
                 F(
                 typename add_reference<typename add_const<State>::type>::type,
                 It&)
@@ -272,7 +272,7 @@ namespace boost { namespace fusion
         {
             typedef typename
                 result_of_unrolled_iter_fold<
-                    typename boost::result_of<
+                    typename fusion::detail::result_of_with_decltype<
                         F(
                             StateRef,
                             It0 const&
diff --git a/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_fold.hpp b/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_fold.hpp
index 95122c8e..94789782 100644
--- a/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_fold.hpp
+++ b/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_fold.hpp
@@ -13,7 +13,7 @@ namespace boost { namespace fusion
     {
         template<typename State, typename It, typename F>
         struct reverse_fold_lvalue_state
-          : boost::result_of<
+          : fusion::detail::result_of_with_decltype<
                 F(
                 typename add_reference<typename add_const<State>::type>::type,
                 typename fusion::result_of::deref<It>::type)
@@ -272,7 +272,7 @@ namespace boost { namespace fusion
         {
             typedef typename
                 result_of_unrolled_reverse_fold<
-                    typename boost::result_of<
+                    typename fusion::detail::result_of_with_decltype<
                         F(
                             StateRef,
                             typename fusion::result_of::deref< It0 const>::type
diff --git a/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_iter_fold.hpp b/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_iter_fold.hpp
index 3dc434fc..bf1edca5 100644
--- a/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_iter_fold.hpp
+++ b/include/boost/fusion/algorithm/iteration/detail/preprocessed/reverse_iter_fold.hpp
@@ -13,7 +13,7 @@ namespace boost { namespace fusion
     {
         template<typename State, typename It, typename F>
         struct reverse_iter_fold_lvalue_state
-          : boost::result_of<
+          : fusion::detail::result_of_with_decltype<
                 F(
                 typename add_reference<typename add_const<State>::type>::type,
                 It&)
@@ -272,7 +272,7 @@ namespace boost { namespace fusion
         {
             typedef typename
                 result_of_unrolled_reverse_iter_fold<
-                    typename boost::result_of<
+                    typename fusion::detail::result_of_with_decltype<
                         F(
                             StateRef,
                             It0 const&