diff --git a/ref/DEFAULT.html b/ref/DEFAULT.html
index ddc52dd..1af3d1b 100644
--- a/ref/DEFAULT.html
+++ b/ref/DEFAULT.html
@@ -3,6 +3,7 @@
 <head>
 <link rel="stylesheet" type="text/css" href="/reset.css">
 <link rel="stylesheet" type="text/css" href="/sig.css">
+<meta charset="UTF-8">
 <script type="text/javascript">
     function loadCodeBackground() {
         fetch("codeBackground").then((data)=>data.text())
