diff --git a/theme/puzzle.html b/theme/puzzle.html
index b36e6b5..70130f3 100644
--- a/theme/puzzle.html
+++ b/theme/puzzle.html
@@ -6,7 +6,6 @@
     <meta name="viewport" content="width=device-width">
     <link rel="icon" href="res/icon.svg" type="image/svg+xml">
     <link rel="icon" href="res/icon.png" type="image/png">
-    <script src="res/concat.js"></script>
     <script>
 function init() {
   let params = new URLSearchParams(window.location.search);