diff --git a/packages/vite/src/server.ts b/packages/vite/src/server.ts
index 588763ae9b..5ba612a075 100644
--- a/packages/vite/src/server.ts
+++ b/packages/vite/src/server.ts
@@ -90,7 +90,6 @@ export async function buildServer (ctx: ViteBuildContext) {
           new RegExp('^' + escapeStringRegexp(withTrailingSlash(resolve(ctx.nuxt.options.rootDir, ctx.nuxt.options.dir.shared)))),
         ],
         output: {
-          preserveModules: true,
           entryFileNames: '[name].mjs',
           format: 'module',
           generatedCode: {