diff --git a/lib/ace/worker/mirror.js b/lib/ace/worker/mirror.js
index 9e6dda73..198432be 100644
--- a/lib/ace/worker/mirror.js
+++ b/lib/ace/worker/mirror.js
@@ -8,7 +8,7 @@ var Mirror = exports.Mirror = function(sender) {
     this.sender = sender;
     var doc = this.doc = new Document("");
     
-    var deferredUpdate = this.deferredUpdate = lang.deferredCall(this.onUpdate.bind(this));
+    var deferredUpdate = this.deferredUpdate = lang.delayedCall(this.onUpdate.bind(this));
     
     var _self = this;
     sender.on("change", function(e) {