diff --git a/src/mred/wxs/wxs_win.xc b/src/mred/wxs/wxs_win.xc
index 754b1cd600..02015e998d 100644
--- a/src/mred/wxs/wxs_win.xc
+++ b/src/mred/wxs/wxs_win.xc
@@ -80,7 +80,7 @@ static Bool wxIsShownToRoot(wxWindow *w)
 
 static long wxWindowGetHandle(wxWindow *w)
 {
-#ifdef wx_win
+#ifdef wx_msw
   return (long)w->GetHWND();
 #else
   return w->GetWindowHandle();