diff --git a/hw/xwin/winwindowswm.c b/hw/xwin/winwindowswm.c
index 4027539c2..c255e490f 100644
--- a/hw/xwin/winwindowswm.c
+++ b/hw/xwin/winwindowswm.c
@@ -483,7 +483,7 @@ ProcWindowsWMFrameSetTitle(
 			   )
 {
   unsigned int title_length, title_max;
-  unsigned char *title_bytes;
+  char *title_bytes;
   REQUEST(xWindowsWMFrameSetTitleReq);
   WindowPtr pWin;
   win32RootlessWindowPtr pRLWinPriv;