diff --git a/tests/inertia.spec.ts b/tests/inertia.spec.ts
index b365be2..43dec3e 100644
--- a/tests/inertia.spec.ts
+++ b/tests/inertia.spec.ts
@@ -423,7 +423,7 @@ test.group('Inertia | Ssr | CSS Preloading', () => {
       .withVite(vite)
       .merge({
         config: {
-          entrypoint: new URL('app.ts', fs.baseUrl),
+          entrypoint: new URL('app.ts', fs.baseUrl).href,
           ssr: { enabled: true, entrypoint: 'app.ts' },
         },
       })