diff --git a/packages/browser/src/client/index.html b/packages/browser/src/client/index.html
index 22c54abf02b5..eace43311e53 100644
--- a/packages/browser/src/client/index.html
+++ b/packages/browser/src/client/index.html
@@ -25,7 +25,7 @@
     {__VITEST_SCRIPTS__}
   </head>
   <body>
-    <iframe id="vitest-ui" src=""></iframe>
+    <iframe id="vitest-ui" src="/__vitest__/"></iframe>
     <script type="module" src="/main.ts"></script>
     <div id="vitest-tester"></div>
   </body>
