diff --git a/js/ui/barLevel.js b/js/ui/barLevel.js
index a2888aaf2..f4fdb6e51 100644
--- a/js/ui/barLevel.js
+++ b/js/ui/barLevel.js
@@ -30,8 +30,8 @@ var BarLevel = GObject.registerClass({
             accessible_role: Atk.Role.LEVEL_BAR,
         };
         super._init(Object.assign(defaultParams, params));
-        this.connect('allocation-changed', (actor, box) => {
-            this._barLevelWidth = box.get_width();
+        this.connect('notify::allocation', () => {
+            this._barLevelWidth = this.allocation.get_width();
         });
 
         this._customAccessible = St.GenericAccessible.new_for_actor(this);
diff --git a/js/ui/layout.js b/js/ui/layout.js
index 53a55c770..9013aa97b 100644
--- a/js/ui/layout.js
+++ b/js/ui/layout.js
@@ -246,7 +246,7 @@ var LayoutManager = GObject.registerClass({
                                            vertical: true });
         this.addChrome(this.panelBox, { affectsStruts: true,
                                         trackFullscreen: true });
-        this.panelBox.connect('allocation-changed',
+        this.panelBox.connect('notify::allocation',
                               this._panelBoxChanged.bind(this));
 
         this.modalDialogGroup = new St.Widget({ name: 'modalDialogGroup',
diff --git a/js/ui/lookingGlass.js b/js/ui/lookingGlass.js
index ac6d41dd5..a5d762987 100644
--- a/js/ui/lookingGlass.js
+++ b/js/ui/lookingGlass.js
@@ -833,9 +833,9 @@ class LookingGlass extends St.BoxLayout {
         Main.uiGroup.add_actor(this);
         Main.uiGroup.set_child_below_sibling(this,
                                              Main.layoutManager.panelBox);
-        Main.layoutManager.panelBox.connect('allocation-changed',
+        Main.layoutManager.panelBox.connect('notify::allocation',
                                             this._queueResize.bind(this));
-        Main.layoutManager.keyboardBox.connect('allocation-changed',
+        Main.layoutManager.keyboardBox.connect('notify::allocation',
                                                this._queueResize.bind(this));
 
         this._objInspector = new ObjInspector(this);