diff --git a/public/index.php b/public/index.php
index 26b2571..6759f6c 100644
--- a/public/index.php
+++ b/public/index.php
@@ -104,9 +104,9 @@ if($reqPath === '/metadata') {
     if($_SERVER['HTTP_HOST'] === 'mii.flashii.net') {
         $resp->type = 'object';
         $resp->content_type = new stdClass;
-        $resp->content_type->string = 'text/meow';
+        $resp->content_type->string = 'application/x-update-your-script-to-use-uiharu.flashii.net-instead-of-mii.flashii.net';
         $resp->content_type->type = 'text';
-        $resp->content_type->subtype = 'meow';
+        $resp->content_type->subtype = 'deprecation';
         $resp->title = 'Update your URLs: mii.flashii.net -> uiharu.flashii.net';
         $resp->description = 'Update your URLs: mii.flashii.net -> uiharu.flashii.net';
         $resp->site_name = 'Deprecation notice';