diff --git a/include/ndnboost/concept/detail/borland.hpp b/include/ndnboost/concept/detail/borland.hpp
index ade28ca..8518175 100644
--- a/include/ndnboost/concept/detail/borland.hpp
+++ b/include/ndnboost/concept/detail/borland.hpp
@@ -1,8 +1,8 @@
 // Copyright David Abrahams 2006. 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)
-#ifndef BOOST_CONCEPT_DETAIL_BORLAND_DWA2006429_HPP
-# define BOOST_CONCEPT_DETAIL_BORLAND_DWA2006429_HPP
+#ifndef NDNBOOST_CONCEPT_DETAIL_BORLAND_DWA2006429_HPP
+# define NDNBOOST_CONCEPT_DETAIL_BORLAND_DWA2006429_HPP
 
 # include <ndnboost/preprocessor/cat.hpp>
 # include <ndnboost/concept/detail/backward_compatibility.hpp>
@@ -18,13 +18,13 @@
     enum { instantiate = sizeof((((Model*)0)->~Model()), 3) };
 };
 
-#  define BOOST_CONCEPT_ASSERT_FN( ModelFnPtr )         \
+#  define NDNBOOST_CONCEPT_ASSERT_FN( ModelFnPtr )         \
   enum                                                  \
   {                                                     \
-      BOOST_PP_CAT(boost_concept_check,__LINE__) =      \
+      NDNBOOST_PP_CAT(boost_concept_check,__LINE__) =      \
       ndnboost::concepts::require<ModelFnPtr>::instantiate  \
   }
 
 }} // namespace ndnboost::concept
 
-#endif // BOOST_CONCEPT_DETAIL_BORLAND_DWA2006429_HPP
+#endif // NDNBOOST_CONCEPT_DETAIL_BORLAND_DWA2006429_HPP