diff --git a/rostests/tests/wcstombs-tests/wcstombs-tests.c b/rostests/tests/wcstombs-tests/wcstombs-tests.c
index a7c5114d3ff..2828bf12d51 100644
--- a/rostests/tests/wcstombs-tests/wcstombs-tests.c
+++ b/rostests/tests/wcstombs-tests/wcstombs-tests.c
@@ -6,8 +6,6 @@
  * COPYRIGHT:  Copyright 2008 Colin Finck <colin@reactos.org>
  */
 
-#define WINVER 0x0500 /* WC_NO_BEST_FIT_CHARS */
-
 #include <windows.h>
 #include <stdio.h>
 #include <stdlib.h>