diff --git a/packages/extension/public/popup.html b/packages/extension/public/popup.html
index 69962012..be4f10e6 100644
--- a/packages/extension/public/popup.html
+++ b/packages/extension/public/popup.html
@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <title>polkadot{.js}</title>
   </head>
-  <body style="border-top:0.25rem solid #ccc; height:640px; margin:0; padding:0 0.75rem 0.75rem; width:480px;">
+  <body style="border-top:0.25rem solid #ccc; box-sizing:border-box; height:580px; margin:0; padding:0 0.75rem; width:480px;">
     <div id="root"></div>
     <script src='./popup.js'></script>
   </body>