diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index e5e992174..0c047487f 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -1500,6 +1500,8 @@ PopupComboMenu.prototype = {
         this.actor._delegate = this;
         this.actor.connect('key-press-event', Lang.bind(this, this._onKeyPressEvent));
         this.actor.connect('key-focus-in', Lang.bind(this, this._onKeyFocusIn));
+        sourceActor.connect('style-changed',
+                            Lang.bind(this, this._onSourceActorStyleChanged));
         this._activeItemPos = -1;
         global.focus_manager.add_group(this.actor);
     },
@@ -1519,6 +1521,10 @@ PopupComboMenu.prototype = {
         activeItem.actor.grab_key_focus();
     },
 
+    _onSourceActorStyleChanged: function() {
+        _ensureStyle(this.actor);
+    },
+
     open: function() {
         if (this.isOpen)
             return;