diff --git a/lib/pool.js b/lib/pool.js
index b566f0e..2f07939 100644
--- a/lib/pool.js
+++ b/lib/pool.js
@@ -277,6 +277,8 @@ Pool.prototype._deprioritizeAddr = function _deprioritizeAddr(addr) {
  * @param {Object}
  */
 Pool.prototype._addAddr = function _addAddr(addr) {
+  // Use default port if not specified
+  addr.port = addr.port || this.network.port;
 
   // make a unique key
   addr.hash = sha256(new Buffer(addr.ip.v6 + addr.ip.v4 + addr.port)).toString('hex');