diff --git a/js/index.html b/js/index.html
index a1506a5..4f507fa 100644
--- a/js/index.html
+++ b/js/index.html
@@ -13,6 +13,7 @@
    <script src="js/FirstPersonControls.js"></script>
     <script src="js/dat.gui.min.js"></script>
      <script src="js/DRACOLoader.js"></script>
+     <script src="js/draco_decoder.js"></script>
     <script src="js/fly.js"></script>
     <!-- index.jsを読み込む -->
 </head>