diff --git a/public/docs/_examples/webpack/ts/config/webpack.prod.js b/public/docs/_examples/webpack/ts/config/webpack.prod.js
index 0e897cb35a..7b2f8f9800 100644
--- a/public/docs/_examples/webpack/ts/config/webpack.prod.js
+++ b/public/docs/_examples/webpack/ts/config/webpack.prod.js
@@ -24,7 +24,11 @@ module.exports = webpackMerge(commonConfig, {
   plugins: [
     new webpack.NoErrorsPlugin(),
     new webpack.optimize.DedupePlugin(),
-    new webpack.optimize.UglifyJsPlugin(),
+    new webpack.optimize.UglifyJsPlugin({ // https://github.com/angular/angular/issues/10618
+      mangle: {
+        keep_fnames: true
+      }
+    }),
     new ExtractTextPlugin('[name].[hash].css'),
     new webpack.DefinePlugin({
       'process.env': {