diff --git a/packages/react-atlas-core/webpack.config.js b/packages/react-atlas-core/webpack.config.js
index <HASH>..<HASH> 100644
--- a/packages/react-atlas-core/webpack.config.js
+++ b/packages/react-atlas-core/webpack.config.js
@@ -40,11 +40,6 @@ let config = {
       'process.env': {
         'NODE_ENV': JSON.stringify(process.env.NODE_ENV)
       }
-    }),
-    new webpack.optimize.UglifyJsPlugin({
-      compress: {
-        warnings: false
-      }
     })
   ]
 };
Don't minimize source during dev builds.