diff --git a/hw/xwin/winclipboardxevents.c b/hw/xwin/winclipboardxevents.c
index edb6ac4bd..2f042fd0b 100644
--- a/hw/xwin/winclipboardxevents.c
+++ b/hw/xwin/winclipboardxevents.c
@@ -76,7 +76,7 @@ winClipboardFlushXEvents (HWND hwnd,
       XEvent			event;
       XSelectionEvent		eventSelection;
       unsigned long		ulReturnBytesLeft;
-      unsigned char		*pszReturnData = NULL;
+      char			*pszReturnData = NULL;
       char			*pszGlobalData = NULL;
       int			iReturn;
       HGLOBAL			hGlobal = NULL;
@@ -221,7 +221,7 @@ winClipboardFlushXEvents (HWND hwnd,
 	  if (!OpenClipboard (hwnd))
 	    {
 	      ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
-		      "OpenClipboard () failed: %08x\n",
+		      "OpenClipboard () failed: %08lx\n",
 		      GetLastError ());
 
 	      /* Abort */
@@ -262,7 +262,7 @@ winClipboardFlushXEvents (HWND hwnd,
 	  if (!hGlobal)
 	    {
 	      ErrorF ("winClipboardFlushXEvents - SelectionRequest - "
-		      "GetClipboardData () failed: %08x\n",
+		      "GetClipboardData () failed: %08lx\n",
 		      GetLastError ());
 
 	      /* Abort */