diff --git a/js/ui/modalDialog.js b/js/ui/modalDialog.js
index a6479595e..4478f9e38 100644
--- a/js/ui/modalDialog.js
+++ b/js/ui/modalDialog.js
@@ -46,7 +46,7 @@ const ModalDialog = new Lang.Class({
         Main.uiGroup.add_actor(this._group);
 
         let constraint = new Clutter.BindConstraint({ source: global.stage,
-                                                      coordinate: Clutter.BindCoordinate.POSITION | Clutter.BindCoordinate.SIZE });
+                                                      coordinate: Clutter.BindCoordinate.ALL });
         this._group.add_constraint(constraint);
 
         this._group.connect('destroy', Lang.bind(this, this._onGroupDestroy));