diff --git a/browser/base_macros.pt b/browser/base_macros.pt
index c9bfd74..b914698 100644
--- a/browser/base_macros.pt
+++ b/browser/base_macros.pt
@@ -25,7 +25,7 @@
 
 
 <metal:js define-macro="js-execute">
-    <script tal:content="macro/jsCall"></script>
+    <script type="text/javascript" tal:content="macro/jsCall"></script>
 </metal:js>