diff --git a/install-usercss.html b/install-usercss.html
index 047f8918..d64a98c4 100644
--- a/install-usercss.html
+++ b/install-usercss.html
@@ -14,6 +14,7 @@
   <script src="js/dom.js"></script>
   <script src="js/localization.js"></script>
   <script src="js/script-loader.js"></script>
+  <script src="js/storage-util.js"></script>
   <script src="content/apply.js"></script>
   <script src="vendor/node-semver/semver.js"></script>
 
diff --git a/manage.html b/manage.html
index 946776f9..c70df145 100644
--- a/manage.html
+++ b/manage.html
@@ -151,7 +151,6 @@
   <script src="js/prefs.js"></script>
   <script src="content/apply.js"></script>
   <script src="js/localization.js"></script>
-  <script src="js/storage-util.js"></script>
   <script src="manage/filters.js"></script>
   <script src="manage/sort.js"></script>
   <script src="manage/manage.js"></script>
@@ -165,6 +164,7 @@
   <script src="manage/incremental-search.js" async></script>
   <script src="msgbox/msgbox.js" async></script>
   <script src="js/sections-equal.js" async></script>
+  <script src="js/storage-util.js" async></script>
 </head>
 
 <body id="stylus-manage" i18n-dragndrop-hint="dragDropMessage">
diff --git a/options.html b/options.html
index 5d5b6895..74fc4f01 100644
--- a/options.html
+++ b/options.html
@@ -22,6 +22,7 @@
   <script src="js/messaging.js"></script>
   <script src="js/localization.js"></script>
   <script src="js/prefs.js"></script>
+  <script src="js/storage-util.js" async></script>
   <script src="content/apply.js"></script>
 </head>
 
