diff --git a/lib/ace/worker/worker_client.js b/lib/ace/worker/worker_client.js
index 23a21e9d..2445ee45 100644
--- a/lib/ace/worker/worker_client.js
+++ b/lib/ace/worker/worker_client.js
@@ -82,8 +82,7 @@ var WorkerClient = function(topLevelNamespaces, packagedJs, module, classname) {
             if (!src) {
                 continue;
             }
-
-            var m = src.match(/^(.*\/)ace\.js$|^(.*\/)ace-uncompressed\.js$/);
+            var m = src.match(/^(?:(.*\/)ace\.js|(.*\/)ace-uncompressed\.js)(?:\?|$)/);
             if (m) {
                 return m[1] || m[2];
             }