diff --git a/include/ndnboost/type_traits/add_cv.hpp b/include/ndnboost/type_traits/add_cv.hpp
index ddf3ac1..8cd56d8 100644
--- a/include/ndnboost/type_traits/add_cv.hpp
+++ b/include/ndnboost/type_traits/add_cv.hpp
@@ -8,8 +8,8 @@
 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
 
 
-#ifndef BOOST_TT_ADD_CV_HPP_INCLUDED
-#define BOOST_TT_ADD_CV_HPP_INCLUDED
+#ifndef NDNBOOST_TT_ADD_CV_HPP_INCLUDED
+#define NDNBOOST_TT_ADD_CV_HPP_INCLUDED
 
 #include <ndnboost/config.hpp>
 
@@ -23,7 +23,7 @@
 // the same as "T const volatile", but it does suppress warnings
 // from some compilers:
 
-#if defined(BOOST_MSVC)
+#if defined(NDNBOOST_MSVC)
 // This bogus warning will appear when add_volatile is applied to a
 // const volatile reference because we can't detect const volatile
 // references with MSVC6.
@@ -31,18 +31,18 @@
 #   pragma warning(disable:4181) // warning C4181: qualifier applied to reference type ignored
 #endif 
 
-BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_cv,T,T const volatile)
+NDNBOOST_TT_AUX_TYPE_TRAIT_DEF1(add_cv,T,T const volatile)
 
-#if defined(BOOST_MSVC)
+#if defined(NDNBOOST_MSVC)
 #   pragma warning(pop)
 #endif 
 
-#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,add_cv,T&,T&)
+#ifndef NDNBOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
+NDNBOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,add_cv,T&,T&)
 #endif
 
 } // namespace ndnboost
 
 #include <ndnboost/type_traits/detail/type_trait_undef.hpp>
 
-#endif // BOOST_TT_ADD_CV_HPP_INCLUDED
+#endif // NDNBOOST_TT_ADD_CV_HPP_INCLUDED