diff --git a/src/core/window.c b/src/core/window.c
index a2f04aa27..57a8b2a70 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -2254,7 +2254,6 @@ idle_calc_showing (gpointer data)
   GSList *should_hide;
   GSList *unplaced;
   GSList *displays;
-  MetaWindow *first_window;
   guint queue_index = GPOINTER_TO_INT (data);
 
   g_return_val_if_fail (queue_pending[queue_index] != NULL, FALSE);
@@ -2307,10 +2306,6 @@ idle_calc_showing (gpointer data)
   should_show = g_slist_sort (should_show, stackcmp);
   should_show = g_slist_reverse (should_show);
 
-  first_window = copy->data;
-
-  meta_display_grab (first_window->display);
-
   tmp = unplaced;
   while (tmp != NULL)
     {
@@ -2383,8 +2378,6 @@ idle_calc_showing (gpointer data)
         }
     }
 
-  meta_display_ungrab (first_window->display);
-
   g_slist_free (copy);
 
   g_slist_free (unplaced);