diff --git a/include/boost/config/auto_link.hpp b/include/boost/config/auto_link.hpp
index fc2e3b81..9193a711 100644
--- a/include/boost/config/auto_link.hpp
+++ b/include/boost/config/auto_link.hpp
@@ -81,7 +81,7 @@ BOOST_LIB_VERSION:    The Boost version, in the form x_y, for Boost version x.y.
 //
 // Only include what follows for known and supported compilers:
 //
-#if (defined(BOOST_MSVC) && defined(_MSC_EXTENSIONS)) \
+#if defined(BOOST_MSVC) \
     || defined(__BORLANDC__) \
     || (defined(__MWERKS__) && defined(_WIN32) && (__MWERKS__ >= 0x3000)) \
     || (defined(__ICL) && defined(_MSC_EXTENSIONS) && (_MSC_VER >= 1200))