diff --git a/docs/telegram-bot-playground/index.html b/docs/telegram-bot-playground/index.html
index e9cd109..d28280e 100644
--- a/docs/telegram-bot-playground/index.html
+++ b/docs/telegram-bot-playground/index.html
@@ -11,6 +11,8 @@
 
   <link rel="stylesheet" href="styles.css?v=oq5lin">
 
+  <link rel="icon" type="image/png" sizes="32x32" href="./favicon.ico">
+
   <script>
     document.addEventListener('playgroundInitialized', async () => {
       await playground.start();