diff --git a/lib/net/packets.js b/lib/net/packets.js
index 72142417..cbaa506d 100644
--- a/lib/net/packets.js
+++ b/lib/net/packets.js
@@ -912,7 +912,7 @@ NetworkAddress.prototype.setHost = function setHost(host) {
  */
 
 NetworkAddress.prototype.setPort = function setPort(port) {
-  this.host = port;
+  this.port = port;
   this.hostname = IP.hostname(this.host, port);
 };