diff --git a/lib/Server.js b/lib/Server.js
index b74614ea15..6fe00da346 100644
--- a/lib/Server.js
+++ b/lib/Server.js
@@ -1187,8 +1187,7 @@ class Server {
 
     // Proxy WebSocket without the initial http request
     // https://github.com/chimurai/http-proxy-middleware#external-websocket-upgrade
-    // eslint-disable-next-line func-names
-    this.webSocketProxies.forEach(function (webSocketProxy) {
+    this.webSocketProxies.forEach((webSocketProxy) => {
       this.server.on("upgrade", webSocketProxy.upgrade);
     }, this);
   }