diff --git a/include/ndnboost/function/function2.hpp b/include/ndnboost/function/function2.hpp
index 65dbfda..603c2d0 100644
--- a/include/ndnboost/function/function2.hpp
+++ b/include/ndnboost/function/function2.hpp
@@ -7,6 +7,6 @@
 
 // For more information, see http://www.boost.org
 
-#define BOOST_FUNCTION_NUM_ARGS 2
+#define NDNBOOST_FUNCTION_NUM_ARGS 2
 #include <ndnboost/function/detail/maybe_include.hpp>
-#undef BOOST_FUNCTION_NUM_ARGS
+#undef NDNBOOST_FUNCTION_NUM_ARGS