diff --git a/include/boost/preprocessor/seq/enum.hpp b/include/boost/preprocessor/seq/enum.hpp
index 0af62a4..b63b242 100644
--- a/include/boost/preprocessor/seq/enum.hpp
+++ b/include/boost/preprocessor/seq/enum.hpp
@@ -18,11 +18,14 @@
 #
 # /* BOOST_PP_SEQ_ENUM */
 #
-# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
-#    define BOOST_PP_SEQ_ENUM(seq) BOOST_PP_CAT(BOOST_PP_SEQ_ENUM_, BOOST_PP_SEQ_SIZE(seq)) seq
-# else
+# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
 #    define BOOST_PP_SEQ_ENUM(seq) BOOST_PP_SEQ_ENUM_I(seq)
 #    define BOOST_PP_SEQ_ENUM_I(seq) BOOST_PP_CAT(BOOST_PP_SEQ_ENUM_, BOOST_PP_SEQ_SIZE(seq)) seq
+# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
+#    define BOOST_PP_SEQ_ENUM(seq) BOOST_PP_SEQ_ENUM_I(BOOST_PP_SEQ_SIZE(seq), seq)
+#    define BOOST_PP_SEQ_ENUM_I(size, seq) BOOST_PP_CAT(BOOST_PP_SEQ_ENUM_, size) seq
+# else
+#    define BOOST_PP_SEQ_ENUM(seq) BOOST_PP_CAT(BOOST_PP_SEQ_ENUM_, BOOST_PP_SEQ_SIZE(seq)) seq
 # endif
 #
 # define BOOST_PP_SEQ_ENUM_1(x) x