diff --git a/webpack.config.min.js b/webpack.config.min.js
index c58a2fd567..308e19e7b0 100644
--- a/webpack.config.min.js
+++ b/webpack.config.min.js
@@ -7,7 +7,11 @@ var config = require("./webpack.config.js");
 
 config.plugins = [
   new ExtractTextPlugin('[name].min.css'),
-  new webpack.optimize.UglifyJsPlugin()
+  new webpack.optimize.UglifyJsPlugin({
+    output: {
+      ascii_only: true
+    }
+  })
 ];
 config.output.filename = config.output.filename.replace(/\.js$/, ".min.js");
 delete config.entry.demo;