diff --git a/webpack.config.prod.js b/webpack.config.prod.js
index 2ea0b31f..6e12644d 100644
--- a/webpack.config.prod.js
+++ b/webpack.config.prod.js
@@ -109,6 +109,7 @@ module.exports = {
       manifestVariable: 'webpackManifest',
     }),
     new webpack.optimize.UglifyJsPlugin({
+      sourceMap: true,
       compress: {
         warnings: false
       }