diff --git a/packages/vite/src/node/preview.ts b/packages/vite/src/node/preview.ts
index 23b905fd01a719..c00f62a9cb8f0c 100644
--- a/packages/vite/src/node/preview.ts
+++ b/packages/vite/src/node/preview.ts
@@ -1,5 +1,4 @@
 import path from 'path'
-import fs from 'fs'
 import sirv from 'sirv'
 import connect from 'connect'
 import compression from './server/middlewares/compression'
@@ -91,20 +90,11 @@ export async function preview(
     config.base,
     sirv(distDir, {
       etag: true,
-      dev: true
+      dev: true,
+      single: true
     })
   )
 
-  app.use(config.base, (_, res, next) => {
-    const file = path.join(distDir, './404.html')
-    if (fs.existsSync(file)) {
-      res.statusCode = 404
-      res.end(fs.readFileSync(file))
-    } else {
-      next()
-    }
-  })
-
   const options = config.preview
   const hostname = resolveHostname(options.host)
   const port = options.port ?? 4173