diff --git a/src/socket.io/index.js b/src/socket.io/index.js
index 58134ae2e2..b77edbb57d 100644
--- a/src/socket.io/index.js
+++ b/src/socket.io/index.js
@@ -13,7 +13,7 @@ const logger = require('../logger');
 const plugins = require('../plugins');
 const ratelimit = require('../middleware/ratelimit');
 
-const Namespaces = {};
+const Namespaces = Object.create(null);
 
 const Sockets = module.exports;