diff --git a/app/assets/javascripts/discourse/views/topic_view.js b/app/assets/javascripts/discourse/views/topic_view.js
index 9a8a7f93f0c..d9469d5dd85 100644
--- a/app/assets/javascripts/discourse/views/topic_view.js
+++ b/app/assets/javascripts/discourse/views/topic_view.js
@@ -69,6 +69,8 @@ Discourse.TopicView = Discourse.View.extend(Discourse.Scrolling, {
 
   didInsertElement: function(e) {
     this.bindScrolling({debounce: 0});
+
+    var topicView = this;
     $(window).bind('resize.discourse-on-scroll', function() { topicView.updatePosition(); });
 
     this.$().on('mouseup.discourse-redirect', '.cooked a, a.track-link', function(e) {