diff --git a/hw/xwin/winshadddnl.c b/hw/xwin/winshadddnl.c
index 55af5c383..cb326dc81 100644
--- a/hw/xwin/winshadddnl.c
+++ b/hw/xwin/winshadddnl.c
@@ -986,6 +986,10 @@ winRedrawScreenShadowDDNL(ScreenPtr pScreen)
     RECT rcSrc, rcDest;
     POINT ptOrigin;
 
+    /* Return immediately if we didn't get needed surfaces */
+    if (!pScreenPriv->pddsPrimary4 || !pScreenPriv->pddsShadow4)
+        return;
+
     /* Get the origin of the window in the screen coords */
     ptOrigin.x = pScreenInfo->dwXOffset;
     ptOrigin.y = pScreenInfo->dwYOffset;