diff --git a/lib/ace/autocomplete.js b/lib/ace/autocomplete.js
index 50154c01..b243727f 100644
--- a/lib/ace/autocomplete.js
+++ b/lib/ace/autocomplete.js
@@ -90,7 +90,7 @@ var Autocomplete = function() {
     this.detach = function() {
         this.editor.keyBinding.removeKeyboardHandler(this.keyboardHandler);
         this.editor.off("changeSelection", this.changeListener);
-        this.editor.off("blur", this.changeListener);
+        this.editor.off("blur", this.blurListener);
         this.editor.off("mousedown", this.mousedownListener);
         this.editor.off("mousewheel", this.mousewheelListener);
         this.changeTimer.cancel();