diff --git a/static/js/graphing.js b/static/js/graphing.js
index 88aedc5da..5581dc3ce 100644
--- a/static/js/graphing.js
+++ b/static/js/graphing.js
@@ -715,7 +715,17 @@ ImageHistoryTree.prototype.toggle_ = function(d) {
   }
 };
 
-/////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Disposes of the tree.
+ */
+ImageHistoryTree.prototype.dispose = function() {
+  var container =  this.container_ ;
+  $('#' + container).removeOverscroll();
+  document.getElementById(container).innerHTML = '';
+};
+
+////////////////////////////////////////////////////////////////////////////////
 
 /**
  * Based off of http://bl.ocks.org/mbostock/1093025 by Mike Bostock (@mbostock)
@@ -814,8 +824,7 @@ ImageFileChangeTree.prototype.notifyResized = function() {
  */
 ImageFileChangeTree.prototype.dispose = function() {
   var container =  this.container_ ;
-  $('#' + container).removeOverscroll();
-  document.getElememtById(container).innerHTML = '';
+  document.getElementById(container).innerHTML = '';
 };