diff --git a/index.html b/index.html
index 4f54238..5ba93b0 100644
--- a/index.html
+++ b/index.html
@@ -13,6 +13,7 @@
       crossorigin="anonymous"
     ></script>
 
+    <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
   </head>
   <body>
