diff --git a/basis/x11/windows/windows.factor b/basis/x11/windows/windows.factor
index 8085907bef..98ec2728fa 100644
--- a/basis/x11/windows/windows.factor
+++ b/basis/x11/windows/windows.factor
@@ -29,6 +29,8 @@ IN: x11.windows
 
 : window-attributes ( visinfo -- attributes )
     "XSetWindowAttributes" <c-object>
+    0 over set-XSetWindowAttributes-background_pixel
+    0 over set-XSetWindowAttributes-border_pixel
     [ [ create-colormap ] dip set-XSetWindowAttributes-colormap ] keep
     event-mask over set-XSetWindowAttributes-event_mask ;