diff --git a/include/boost/config/stdlib/dinkumware.hpp b/include/boost/config/stdlib/dinkumware.hpp
index d2c4ea87..5b13f7ea 100644
--- a/include/boost/config/stdlib/dinkumware.hpp
+++ b/include/boost/config/stdlib/dinkumware.hpp
@@ -55,7 +55,7 @@
 #  endif
 #endif
 
-#if defined(_MSC_VER) && (_MSC_VER <= 1200)
+#if defined(_MSC_VER) && (_MSC_VER <= 1200) || !defined(_CPPLIB_VER) || _CPPLIB_VER < 306
    // if we're using a dinkum lib that's
    // been configured for VC6 then there is
    // no iterator traits (true even for icl)