diff --git a/include/boost/regex/config/cwchar.hpp b/include/boost/regex/config/cwchar.hpp
index 1d189e6c..a55089d0 100644
--- a/include/boost/regex/config/cwchar.hpp
+++ b/include/boost/regex/config/cwchar.hpp
@@ -168,7 +168,7 @@ using ::wcscmp;
 inline int (wcscoll)(const wchar_t *p1, const wchar_t *p2)
 { return wcscoll(p1,p2); }
 #undef wcscoll
-#elif defined(BOOST_NO_STDC_NAMESPACE)
+#elif defined(BOOST_NO_STDC_NAMESPACE) && !defined(UNDER_CE)
 using ::wcscoll;
 #endif