diff --git a/lib/connection.js b/lib/connection.js
index 79b3e56..4359358 100644
--- a/lib/connection.js
+++ b/lib/connection.js
@@ -316,7 +316,6 @@ Connection.ErrorReceived = 'connection:errorReceived';
  * @param sasl      If given, contains a "negotiate" method that, given address and a callback, will run through SASL negotiations.
  */
 Connection.prototype.open = function(address, sasl) {
-  u.assertArguments(address, ['protocol', 'host', 'port']);
   this.connSM.connect(address, sasl);
 };