diff --git a/dev/index.php b/dev/index.php
index cca4f59..cbf333e 100644
--- a/dev/index.php
+++ b/dev/index.php
@@ -42,6 +42,7 @@ body{
 <body>
   <h1>DEVELOPMENT PAGE</h1>
   <hr>
+  <sup><a href="/dev/playground/">dev playground</a></sup><br>
 
   <?php
 
