diff --git a/index.html b/index.html
index c1240f0..5e29d8f 100644
--- a/index.html
+++ b/index.html
@@ -6,6 +6,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <link rel="stylesheet" href="style.css">
     <title>« futile »</title>
+    <script> let FF_FOUC_FIX; </script>
 </head>
 
 <body>
