diff --git a/lib/js/test/test-es6.html b/lib/js/test/test-es6.html
index bf04901..f0b8dd9 100644
--- a/lib/js/test/test-es6.html
+++ b/lib/js/test/test-es6.html
@@ -22,6 +22,9 @@
   <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
   <title>Thrift Javascript Bindings: Unit Test</title>
 
+  <script src="build/js/lib/Int64.js" type="text/javascript" charset="utf-8"></script>
+  <script src="build/js/lib/Int64Util.js" type="text/javascript" charset="utf-8"></script>
+  <script src="build/js/lib/JSONInt64.js" type="text/javascript" charset="utf-8"></script>
   <script src="build/js/thrift.js"         type="text/javascript" charset="utf-8"></script>
   <script src="gen-js-es6/ThriftTest_types.js" type="text/javascript" charset="utf-8"></script>
   <script src="gen-js-es6/ThriftTest.js"       type="text/javascript" charset="utf-8"></script>