function removeDNProp($propName)
    {
        if (empty($this->dn)) {
            return;
        }

        if (($propName = $this->_translateDNProp($propName)) === false) {
            return;
        }

        $dn = &$this->dn['rdnSequence'];
        $size = count($dn);
        for ($i = 0; $i < $size; $i++) {
            if ($dn[$i][0]['type'] == $propName) {
                unset($dn[$i]);
            }
        }

        $dn = array_values($dn);
    }