diff --git a/webpack.prod.js b/webpack.prod.js
index e26d5af..55c806a 100644
--- a/webpack.prod.js
+++ b/webpack.prod.js
@@ -3,6 +3,7 @@ const webpack = require('webpack')
 const UglifyJsPlugin = require('uglifyjs-webpack-plugin')
 
 module.exports = {
+  devtool: '#source-map',
   entry: {
     main: './src/index.js'
   },