diff --git a/include/boost/mpl/has_xxx.hpp b/include/boost/mpl/has_xxx.hpp
index bdca255..b44edfb 100644
--- a/include/boost/mpl/has_xxx.hpp
+++ b/include/boost/mpl/has_xxx.hpp
@@ -296,11 +296,7 @@ struct trait \
 #   endif
 
 #   if !defined(BOOST_MPL_HAS_XXX_NO_EXPLICIT_TEST_FUNCTION)
-#     if (defined(BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS))
-#       define BOOST_MPL_HAS_XXX_NO_EXPLICIT_TEST_FUNCTION 1
-#     else
-#       define BOOST_MPL_HAS_XXX_NO_EXPLICIT_TEST_FUNCTION 0
-#     endif
+#     define BOOST_MPL_HAS_XXX_NO_EXPLICIT_TEST_FUNCTION 0
 #   endif
 
 #   if !defined(BOOST_MPL_HAS_XXX_NEEDS_TEMPLATE_SFINAE)