diff --git a/lib/ace/virtual_renderer.js b/lib/ace/virtual_renderer.js
index e67deb09..52c4ce69 100644
--- a/lib/ace/virtual_renderer.js
+++ b/lib/ace/virtual_renderer.js
@@ -120,10 +120,10 @@ var VirtualRenderer = function(container, theme) {
         _self.session.setScrollLeft(scrollLeft);
 
         if (scrollLeft == 0) {
-            _self.$gutter.className = "ace_gutter";
+            _self.scroller.className = "ace_scroller";
         }
         else {
-            _self.$gutter.className = "ace_gutter horscroll";
+            _self.scroller.className = "ace_scroller horscroll";
         }
     });