diff --git a/playground/assets/vite.config-relative-base.js b/playground/assets/vite.config-relative-base.js
index ae09766c0768ac..2b5518cfbeb9a0 100644
--- a/playground/assets/vite.config-relative-base.js
+++ b/playground/assets/vite.config-relative-base.js
@@ -13,6 +13,7 @@ module.exports = {
     minify: false,
     assetsInlineLimit: 0,
     rollupOptions: {
+      input: 'index.html',
       output: {
         entryFileNames: 'entries/[name].js',
         chunkFileNames: 'chunks/[name].[hash].js',
diff --git a/playground/assets/vite.config-runtime-base.js b/playground/assets/vite.config-runtime-base.js
index 1752e974b8abcd..62d8a1b64fe678 100644
--- a/playground/assets/vite.config-runtime-base.js
+++ b/playground/assets/vite.config-runtime-base.js
@@ -20,6 +20,7 @@ module.exports = {
     minify: false,
     assetsInlineLimit: 0,
     rollupOptions: {
+      input: 'index.html',
       output: {
         entryFileNames: 'entries/[name].js',
         chunkFileNames: 'chunks/[name].[hash].js',