diff --git a/lib/builder/webpack/client.config.js b/lib/builder/webpack/client.config.js
index b2522fc133..cfa02f9635 100644
--- a/lib/builder/webpack/client.config.js
+++ b/lib/builder/webpack/client.config.js
@@ -8,7 +8,6 @@ const ProgressBarPlugin = require('progress-bar-webpack-plugin')
 const ProgressPlugin = require('webpack/lib/ProgressPlugin')
 const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer')
 const { resolve } = require('path')
-const { existsSync } = require('fs')
 const Debug = require('debug')
 const Chalk = require('chalk')
 const { printWarn } = require('../../common/utils')