diff --git a/taskbar.js b/taskbar.js
index 0d0d868..893d76e 100644
--- a/taskbar.js
+++ b/taskbar.js
@@ -964,9 +964,9 @@ var taskbar = Utils.defineClass({
                     // Ensure the next and previous icon are visible when moving the icon
                     // (I assume there's room for both of them)
                     if (hoveredIndex > 1)
-                        ensureActorVisibleInScrollView(this._scrollView, this._box.get_children()[hoveredIndex-1], this._scrollView._dtpFadeSize);
+                        Utils.ensureActorVisibleInScrollView(this._scrollView, this._box.get_children()[hoveredIndex-1], this._scrollView._dtpFadeSize);
                     if (hoveredIndex < this._box.get_children().length-1)
-                        ensureActorVisibleInScrollView(this._scrollView, this._box.get_children()[hoveredIndex+1], this._scrollView._dtpFadeSize);
+                        Utils.ensureActorVisibleInScrollView(this._scrollView, this._box.get_children()[hoveredIndex+1], this._scrollView._dtpFadeSize);
             }
         }