diff --git a/lib/ace/worker/worker.js b/lib/ace/worker/worker.js
index 0e7270a3..9a258575 100644
--- a/lib/ace/worker/worker.js
+++ b/lib/ace/worker/worker.js
@@ -2,7 +2,12 @@
 
 var console = {
     log: function(msgs) {
-        postMessage({type: "log", data: arguments.join(" ")});
+        msgs = Array.prototype.slice.call(arguments, 0);
+        postMessage({type: "log", data: msgs});
+    },
+    error: function(msgs) {
+        msgs = Array.prototype.slice.call(arguments, 0);
+        postMessage({type: "log", data: msgs});
     }
 };
 var window = {