diff --git a/web/gui/src/main/webapp/index.html b/web/gui/src/main/webapp/index.html
index 3d22c9a..5266d89 100644
--- a/web/gui/src/main/webapp/index.html
+++ b/web/gui/src/main/webapp/index.html
@@ -41,6 +41,7 @@
     <script src="app/directives.js"></script>
 
     <script src="app/fw/util/util.js"></script>
+    <script src="app/fw/util/ee.js"></script>
     <script src="app/fw/util/fn.js"></script>
     <script src="app/fw/util/random.js"></script>
     <script src="app/fw/util/theme.js"></script>