diff --git a/ndnboost/mpl/list/list20.hpp b/ndnboost/mpl/list/list20.hpp
new file mode 100644
index 0000000..a9dd822
--- /dev/null
+++ b/ndnboost/mpl/list/list20.hpp
@@ -0,0 +1,43 @@
+
+#ifndef BOOST_MPL_LIST_LIST20_HPP_INCLUDED
+#define BOOST_MPL_LIST_LIST20_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id: list20.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
+// $Revision: 49267 $
+
+#if !defined(BOOST_MPL_PREPROCESSING_MODE)
+#   include <ndnboost/mpl/list/list10.hpp>
+#endif
+
+#include <ndnboost/mpl/aux_/config/use_preprocessed.hpp>
+
+#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
+ && !defined(BOOST_MPL_PREPROCESSING_MODE)
+
+#   define BOOST_MPL_PREPROCESSED_HEADER list20.hpp
+#   include <ndnboost/mpl/list/aux_/include_preprocessed.hpp>
+
+#else
+
+#   include <ndnboost/preprocessor/iterate.hpp>
+
+namespace ndnboost { namespace mpl {
+
+#   define BOOST_PP_ITERATION_PARAMS_1 \
+    (3,(11, 20, <ndnboost/mpl/list/aux_/numbered.hpp>))
+#   include BOOST_PP_ITERATE()
+
+}}
+
+#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+
+#endif // BOOST_MPL_LIST_LIST20_HPP_INCLUDED