diff --git a/src/FilterLists.Web/webpack.config.vendor.js b/src/FilterLists.Web/webpack.config.vendor.js
index 1f92c1f2d..499afc9ff 100644
--- a/src/FilterLists.Web/webpack.config.vendor.js
+++ b/src/FilterLists.Web/webpack.config.vendor.js
@@ -45,7 +45,11 @@ module.exports = (env) => {
                 new webpack.DefinePlugin({
                     'process.env.NODE_ENV': isDevBuild ? '"development"' : '"production"'
                 })
-            ]
+            ].concat(isDevBuild
+                ? []
+                : [
+                    new webpack.optimize.UglifyJsPlugin()
+                ])
         }
     ];
 };
\ No newline at end of file