diff --git a/oauth/authorize.php b/oauth/authorize.php
index 286340d..291693e 100644
--- a/oauth/authorize.php
+++ b/oauth/authorize.php
@@ -36,6 +36,7 @@ if (empty($_POST)) {
 <!DOCTYPE html>
 <html>
   <head>
+    <meta charset="UTF-8" />
       <link rel="stylesheet" type="text/css" href="./style.css">
     <title>Authorisation Mattermost</title>
   </head>
