diff --git a/include/wx/wxchar.h b/include/wx/wxchar.h
index 4b95026c0c..ecf6f69753 100644
--- a/include/wx/wxchar.h
+++ b/include/wx/wxchar.h
@@ -902,8 +902,8 @@ WXDLLIMPEXP_BASE int      wxSystem(const wxChar *psz);
                                   const wxChar *fmt, const struct tm *tm);
 #endif // wxNEED_WX_TIME_H
 
-// missing functions in WinCE
-#ifdef __WXWINCE__
+// missing functions in early WinCE versions
+#if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
 WXDLLIMPEXP_BASE char* strdup(const char* s);
 WXDLLIMPEXP_BASE void *calloc( size_t num, size_t size );