diff --git a/src/xterm.h b/src/xterm.h
index 4ab52d5fb8883c49df801f36b367add067fa0ba1..b7eb1ccfb6f85f54834fcddf8078b9b8ec1161f4 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -475,6 +475,9 @@ struct x_display
   /* Nonzero means our parent is another application's window
      and was explicitly specified.  */
   char explicit_parent;
+
+  /* Nonzero means tried already to make this frame visible.  */
+  char asked_for_visible;
 };
 
 /* Get at the computed faces of an X window frame.  */