diff --git a/include/boost/fusion/algorithm/iteration/detail/fold.hpp b/include/boost/fusion/algorithm/iteration/detail/fold.hpp
index 22cb6ecd..5c3ec765 100644
--- a/include/boost/fusion/algorithm/iteration/detail/fold.hpp
+++ b/include/boost/fusion/algorithm/iteration/detail/fold.hpp
@@ -194,30 +194,6 @@ namespace boost { namespace fusion
     {
         return detail::BOOST_FUSION_FOLD_NAME<Seq const, State const, F>(seq, state, f);
     }
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::BOOST_FUSION_FOLD_NAME<
-        Seq
-      , State const
-      , F
-    >::type
-    BOOST_FUSION_FOLD_NAME(Seq& seq, State& state, F f)
-    {
-        return detail::BOOST_FUSION_FOLD_NAME<Seq, State, F>(seq, state, f);
-    }
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::BOOST_FUSION_FOLD_NAME<
-        Seq const
-      , State const
-      , F
-    >::type
-    BOOST_FUSION_FOLD_NAME(Seq const& seq, State& state, F f)
-    {
-        return detail::BOOST_FUSION_FOLD_NAME<Seq const, State, F>(seq, state, f);
-    }
 }}
 
 #undef BOOST_FUSION_FOLD_NAME
diff --git a/include/boost/fusion/algorithm/iteration/fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/fold_fwd.hpp
index f8328e80..06dd6dda 100644
--- a/include/boost/fusion/algorithm/iteration/fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/fold_fwd.hpp
@@ -33,24 +33,6 @@ namespace boost { namespace fusion
       , F
     >::type
     fold(Seq const& seq, State const& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::fold<
-        Seq
-      , State const
-      , F
-    >::type
-    fold(Seq& seq, State& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::fold<
-        Seq const
-      , State const
-      , F
-    >::type
-    fold(Seq const& seq, State& state, F f);
 }}
 
 #endif
diff --git a/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp
index 6c595cf1..e7b7f434 100644
--- a/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/iter_fold_fwd.hpp
@@ -33,24 +33,6 @@ namespace boost { namespace fusion
       , F
     >::type
     iter_fold(Seq const& seq, State const& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::iter_fold<
-        Seq
-      , State const
-      , F
-    >::type
-    iter_fold(Seq& seq, State& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::iter_fold<
-        Seq const
-      , State const
-      , F
-    >::type
-    iter_fold(Seq const& seq, State& state, F f);
 }}
 
 #endif
diff --git a/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp
index 42c8ac21..f1dd8ac7 100644
--- a/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/reverse_fold_fwd.hpp
@@ -33,24 +33,6 @@ namespace boost { namespace fusion
       , F
     >::type
     reverse_fold(Seq const& seq, State const& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::reverse_fold<
-        Seq
-      , State const
-      , F
-    >::type
-    reverse_fold(Seq& seq, State& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::reverse_fold<
-        Seq const
-      , State const
-      , F
-    >::type
-    reverse_fold(Seq const& seq, State& state, F f);
 }}
 
 #endif
diff --git a/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp b/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp
index 21d99dee..6a60931d 100644
--- a/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp
+++ b/include/boost/fusion/algorithm/iteration/reverse_iter_fold_fwd.hpp
@@ -33,24 +33,6 @@ namespace boost { namespace fusion
       , F
     >::type
     reverse_iter_fold(Seq const& seq, State const& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::reverse_iter_fold<
-        Seq
-      , State const
-      , F
-    >::type
-    reverse_iter_fold(Seq& seq, State& state, F f);
-
-    template<typename Seq, typename State, typename F>
-    BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
-    inline typename result_of::reverse_iter_fold<
-        Seq const
-      , State const
-      , F
-    >::type
-    reverse_iter_fold(Seq const& seq, State& state, F f);
 }}
 
 #endif