diff --git a/lib/server.js b/lib/server.js
index 4f2b8733..1ffce26b 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -487,6 +487,9 @@ Server.prototype.attach = function (server, options) {
         // then the socket needs to die!
         setTimeout(function () {
           if (socket.writable && socket.bytesWritten <= 0) {
+            socket.on('error', e => {
+              debug('error while destroying upgrade: %s', e.message);
+            });
             return socket.end();
           }
         }, destroyUpgradeTimeout);