diff --git a/include/ndnboost/function/function9.hpp b/include/ndnboost/function/function9.hpp
index 33c8836..a0cd21b 100644
--- a/include/ndnboost/function/function9.hpp
+++ b/include/ndnboost/function/function9.hpp
@@ -7,6 +7,6 @@
 
 // For more information, see http://www.boost.org
 
-#define BOOST_FUNCTION_NUM_ARGS 9
+#define NDNBOOST_FUNCTION_NUM_ARGS 9
 #include <ndnboost/function/detail/maybe_include.hpp>
-#undef BOOST_FUNCTION_NUM_ARGS
+#undef NDNBOOST_FUNCTION_NUM_ARGS