diff --git a/lib/SvelteUi/app/index.html b/lib/SvelteUi/app/index.html
index 3e5d5417..b1a58959 100644
--- a/lib/SvelteUi/app/index.html
+++ b/lib/SvelteUi/app/index.html
@@ -4,6 +4,7 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <link rel="icon" href="/favicon.svg">
+    <link rel="mask-icon" href="/favicon.svg" color="#000000">
     <title>AMS reader</title>
   </head>
   <body class="bg-gray-100">
