diff --git a/packages/vite/client.d.ts b/packages/vite/client.d.ts
index 3a9dd88f771f0d..e807d61414c5c7 100644
--- a/packages/vite/client.d.ts
+++ b/packages/vite/client.d.ts
@@ -1,5 +1,8 @@
 /// <reference path="./types/importMeta.d.ts" />
 
+// virtual modules
+declare module 'vite/modulepreload-polyfill' {}
+
 // CSS modules
 type CSSModuleClasses = { readonly [key: string]: string }
 
diff --git a/playground/backend-integration/frontend/entrypoints/main.ts b/playground/backend-integration/frontend/entrypoints/main.ts
index a147ddbfffb421..f32a8084f2a90d 100644
--- a/playground/backend-integration/frontend/entrypoints/main.ts
+++ b/playground/backend-integration/frontend/entrypoints/main.ts
@@ -1,4 +1,3 @@
-// @ts-expect-error virtual module (TODO: investigate typing this)
 import 'vite/modulepreload-polyfill'
 import cssUrl from '../styles/url.css?url'
 import waterContainer from './water-container.svg'