diff --git a/perf/perf-ui.js b/perf/asset/perf-ui.js
similarity index 100%
rename from perf/perf-ui.js
rename to perf/asset/perf-ui.js
diff --git a/test/test-ui.js b/test/asset/test-ui.js
similarity index 100%
rename from test/test-ui.js
rename to test/asset/test-ui.js
diff --git a/test/worker.js b/test/asset/worker.js
similarity index 74%
rename from test/worker.js
rename to test/asset/worker.js
index 521249af8..75f21c9a5 100644
--- a/test/worker.js
+++ b/test/asset/worker.js
@@ -1,6 +1,6 @@
 addEventListener('message', function(e) {
   if (e.data) {
-    importScripts(e.data);
+    importScripts('../' + e.data);
     postMessage(_.VERSION);
   }
 }, false);
diff --git a/test/backbone.html b/test/backbone.html
index 67fc71fa8..fde8a4ff3 100644
--- a/test/backbone.html
+++ b/test/backbone.html
@@ -22,7 +22,7 @@
 		<script src="../vendor/jquery/jquery.js"></script>
 		<script src="../vendor/platform.js/platform.js"></script>
 		<script src="../vendor/qunit/qunit/qunit.js"></script>
-		<script src="test-ui.js"></script>
+		<script src="./asset/test-ui.js"></script>
 		<script src="../lodash.js"></script>
 		<script>
 			var lodash = _.noConflict();
diff --git a/test/index.html b/test/index.html
index a2453ecb6..2cd3a5f8c 100644
--- a/test/index.html
+++ b/test/index.html
@@ -13,7 +13,7 @@
 	<body>
 		<script src="../vendor/qunit/qunit/qunit.js"></script>
 		<script src="../vendor/platform.js/platform.js"></script>
-		<script src="test-ui.js"></script>
+		<script src="./asset/test-ui.js"></script>
 		<div id="qunit"></div>
 		<div id="exports"></div>
 		<script>
diff --git a/test/test.js b/test/test.js
index 891195bc0..cc1e001c4 100644
--- a/test/test.js
+++ b/test/test.js
@@ -199,7 +199,7 @@
     if (!Worker || isModularize) {
       return;
     }
-    var worker = new Worker('./worker.js');
+    var worker = new Worker('./asset/worker.js?t=' + (+new Date));
     worker.addEventListener('message', function(e) {
       _._VERSION = e.data || '';
     }, false);
diff --git a/test/underscore.html b/test/underscore.html
index 040f4efba..d56d2d5e4 100644
--- a/test/underscore.html
+++ b/test/underscore.html
@@ -22,7 +22,7 @@
 		<script src="../vendor/qunit/qunit/qunit.js"></script>
 		<script src="../vendor/jquery/jquery.js"></script>
 		<script src="../vendor/platform.js/platform.js"></script>
-		<script src="test-ui.js"></script>
+		<script src="./asset/test-ui.js"></script>
 		<script>
 			function init(lodash) {
 				var arrayRef = [],
