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diff --git a/boost/fusion/container/deque/back_extended_deque.hpp b/boost/fusion/container/deque/back_extended_deque.hpp
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+++ b/boost/fusion/container/deque/back_extended_deque.hpp
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+/*=============================================================================
+    Copyright (c) 2005-2011 Joel de Guzman
+    Copyright (c) 2005-2006 Dan Marsden
+
+    Distributed under the Boost Software License, Version 1.0. (See accompanying 
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+==============================================================================*/
+#if !defined(BOOST_FUSION_BACK_EXTENDED_DEQUE_26112006_2209)
+#define BOOST_FUSION_BACK_EXTENDED_DEQUE_26112006_2209
+
+#include <boost/fusion/container/deque/detail/keyed_element.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/plus.hpp>
+#include <boost/fusion/sequence/intrinsic/size.hpp>
+#include <boost/fusion/support/sequence_base.hpp>
+
+#include <boost/type_traits/add_const.hpp>
+#include <boost/type_traits/add_reference.hpp>
+
+namespace boost { namespace fusion {
+    template<typename Deque, typename T>
+    struct back_extended_deque
+        : detail::keyed_element<typename Deque::next_up, T, Deque>,
+          sequence_base<back_extended_deque<Deque, T> >
+    {
+        typedef detail::keyed_element<typename Deque::next_up, T, Deque> base;
+        typedef typename Deque::next_down next_down;
+        typedef mpl::int_<mpl::plus<typename Deque::next_up, mpl::int_<1> >::value> next_up;
+        typedef mpl::plus<typename result_of::size<Deque>::type, mpl::int_<1> > size;
+
+        back_extended_deque(Deque const& deque, typename add_reference<typename add_const<T>::type>::type t)
+            : base(t, deque)
+        {}
+    };
+}}
+
+#endif