diff --git a/lib/ace/edit_session.js b/lib/ace/edit_session.js
index fde1e05c..6cc84fc2 100644
--- a/lib/ace/edit_session.js
+++ b/lib/ace/edit_session.js
@@ -643,9 +643,8 @@ var EditSession = function(text, mode) {
         if (useWrapMode != this.$useWrapMode) {
             this.$useWrapMode = useWrapMode;
             this.$updateWrapData(0, this.getLength() - 1);
+            this.$modified = true;
             this._dispatchEvent("changeWrapMode");
-            // TODO: Add this one back.
-            // this.fireChangeEvent(0);
         }
     };