diff --git a/webpack.dev.js b/webpack.dev.js
index 5990cd1d..6e997ae6 100644
--- a/webpack.dev.js
+++ b/webpack.dev.js
@@ -57,7 +57,6 @@ module.exports = merge.smart(require('./webpack.base.js'), {
     hot: true,
     contentBase: 'example/',
     historyApiFallback: true,
-    // devTool: 'cheap-module-source-map',
     disableHostCheck: true,
     headers: {"Access-Control-Allow-Origin": "*"},
   },