diff --git a/lib/builder/webpack/base.config.js b/lib/builder/webpack/base.config.js
index 75bf3af984..762598e3df 100644
--- a/lib/builder/webpack/base.config.js
+++ b/lib/builder/webpack/base.config.js
@@ -19,7 +19,7 @@ export default function webpackBaseConfig(name) {
 
   const config = {
     name,
-    devtool: this.options.dev ? 'cheap-module-source-map' : 'nosources-source-map',
+    devtool: this.options.dev ? 'cheap-module-source-map' : false,
     entry: {
       app: null
     },