diff --git a/app/index.html b/app/index.html
index f5e1112d..d1ffecab 100644
--- a/app/index.html
+++ b/app/index.html
@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="en" ng-app="myApp" manifest=app.manifest><!--  ng-csp=""  -->
+<html lang="en" ng-app="myApp" manifest="app.manifest"><!--  ng-csp=""  -->
 <head>
   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, user-scalable=no">
