diff --git a/lib/Net/LDAP3.php b/lib/Net/LDAP3.php
--- a/lib/Net/LDAP3.php
+++ b/lib/Net/LDAP3.php
@@ -635,7 +635,7 @@
                     ldap_set_option($lc, LDAP_OPT_REFERRALS, (bool) $referrals);
                 }
 
-                $this->_current_host = $host;
+                $this->_current_host = $host . (strpos($host, ':') ? '' : ":$port");
                 $this->conn          = $lc;
 
                 break;
@@ -789,9 +789,7 @@
                 $moz_ldapsearch,
                 '-x',
                 '-h',
-                preg_replace('|^[a-z]+://|i', '', $this->_current_host),
-                '-p',
-                $this->config_get('port', 389),
+                $this->_current_host,
                 '-b',
                 escapeshellarg($entry_dn),
                 '-s',