diff --git a/ndnboost/config/compiler/codegear.hpp b/ndnboost/config/compiler/codegear.hpp
index 90790de..7108663 100644
--- a/ndnboost/config/compiler/codegear.hpp
+++ b/ndnboost/config/compiler/codegear.hpp
@@ -110,6 +110,7 @@
 #define BOOST_NO_CXX11_UNICODE_LITERALS
 #define BOOST_NO_CXX11_VARIADIC_TEMPLATES
 #define BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
+#define BOOST_NO_CXX11_USER_DEFINED_LITERALS
 
 //
 // TR1 macros: