diff --git a/build/dev-server.js b/build/dev-server.js
index b7eeae3a..9c3d4e00 100644
--- a/build/dev-server.js
+++ b/build/dev-server.js
@@ -66,5 +66,5 @@ module.exports = app.listen(port, function (err) {
   }
   var uri = 'http://localhost:' + port
   console.log('Listening at ' + uri + '\n')
-  opn(uri)
+  // opn(uri)
 })