diff --git a/lib/builder-webpack5/src/preview/iframe-webpack.config.ts b/lib/builder-webpack5/src/preview/iframe-webpack.config.ts
index e46e8f484b56..d4c7ec0f963e 100644
--- a/lib/builder-webpack5/src/preview/iframe-webpack.config.ts
+++ b/lib/builder-webpack5/src/preview/iframe-webpack.config.ts
@@ -214,7 +214,7 @@ export default async (options: Options & Record<string, any>): Promise<Configura
         ...stringifyProcessEnvs(envs),
         NODE_ENV: JSON.stringify(process.env.NODE_ENV),
       }),
-      new ProvidePlugin({ process: 'process/browser' }),
+      new ProvidePlugin({ process: 'process/browser.js' }),
       isProd ? null : new WatchMissingNodeModulesPlugin(nodeModulesPaths),
       isProd ? null : new HotModuleReplacementPlugin(),
       new CaseSensitivePathsPlugin(),