diff --git a/src/compositor/meta-window-actor.c b/src/compositor/meta-window-actor.c
index be2514eb4..9456990cb 100644
--- a/src/compositor/meta-window-actor.c
+++ b/src/compositor/meta-window-actor.c
@@ -1685,7 +1685,7 @@ static void
 check_needs_x11_pixmap (MetaWindowActor *self)
 {
   MetaWindowActorPrivate *priv = self->priv;
-  MetaDisplay *display = meta_screen_get_display (screen);
+  MetaDisplay *display = meta_screen_get_display (priv->screen);
   Display *xdisplay = meta_display_get_xdisplay (display);
   Window xwindow  = meta_window_get_toplevel_xwindow (priv->window);