diff --git a/BTCPayServer/wwwroot/_bootstrap_kitchensink.html b/BTCPayServer/wwwroot/_bootstrap_kitchensink.html
index 51f9f46c2..8341623ee 100644
--- a/BTCPayServer/wwwroot/_bootstrap_kitchensink.html
+++ b/BTCPayServer/wwwroot/_bootstrap_kitchensink.html
@@ -10,7 +10,7 @@
     <link href="main/bootstrap/bootstrap.css" rel="stylesheet" />
     <link href="main/bootstrap4-creativestart/creative.css" rel="stylesheet" />
     <script>
-        const theme = window.location.search.replace('?theme=','') || 'classic';
+        const theme = window.location.search.replace('?theme=','') || 'default';
         document.write(`<link href="main/themes/${theme}.css" rel="stylesheet" />`)
     </script>