diff --git a/packages/node_modules/node-red/red.js b/packages/node_modules/node-red/red.js
index 4763fd5a14..2f5ab354c6 100755
--- a/packages/node_modules/node-red/red.js
+++ b/packages/node_modules/node-red/red.js
@@ -458,7 +458,7 @@ httpsPromise.then(function(startupHttps) {
     RED.start().then(function() {
         if (settings.httpAdminRoot !== false || settings.httpNodeRoot !== false || settings.httpStatic) {
             server.on('error', function(err) {
-                if (err.errno === "EADDRINUSE") {
+                if (err.code === "EADDRINUSE") {
                     RED.log.error(RED.log._("server.unable-to-listen", {listenpath:getListenPath()}));
                     RED.log.error(RED.log._("server.port-in-use"));
                 } else {