diff --git a/lib/cluster.js b/lib/cluster.js
index 8f27e67c3f4..1f8f7f3e0f4 100644
--- a/lib/cluster.js
+++ b/lib/cluster.js
@@ -56,7 +56,6 @@ Worker.prototype.send = function() {
 
 function SharedHandle(key, address, port, addressType, backlog, fd) {
   this.key = key;
-  this.errno = '';
   this.workers = [];
   this.handle = null;
   this.errno = 0;