diff --git a/include/boost/mpl/aux_/msvc_never_true.hpp b/include/boost/mpl/aux_/msvc_never_true.hpp
index 56bdfee..88f67ed 100644
--- a/include/boost/mpl/aux_/msvc_never_true.hpp
+++ b/include/boost/mpl/aux_/msvc_never_true.hpp
@@ -19,7 +19,7 @@
 
 #include "boost/config.hpp"
 
-#if defined(BOOST_MSVC) && BOOST_MSVC < 1300
+#if defined(BOOST_MSVC) && BOOST_MSVC <= 1300
 
 namespace boost {
 namespace mpl {