diff --git a/app.js b/app.js
index 7a66a537..265eb475 100644
--- a/app.js
+++ b/app.js
@@ -57,7 +57,7 @@ app.use(morgan('combined', {
 }))
 
 // socket io
-var io = require('socket.io')(server)
+var io = require('socket.io')(server, { cookie: false })
 io.engine.ws = new (require('ws').Server)({
   noServer: true,
   perMessageDeflate: false