diff --git a/modules/registrars/cozaepp/cozaepp.php b/modules/registrars/cozaepp/cozaepp.php
index b96183200b10759974e6855f15031eca39a03701..ddb57164a57e65f7482cd01d3ce18e602276d292 100644
--- a/modules/registrars/cozaepp/cozaepp.php
+++ b/modules/registrars/cozaepp/cozaepp.php
@@ -1199,7 +1199,7 @@ function _cozaepp_ackpoll($client,$msgid) {
 	$msg = $doc->getElementsByTagName('msg')->item(0)->nodeValue;
 
 	# Check result
-	if($coderes != '1301' && $coderes != '1300') {
+	if($coderes != '1301' && $coderes != '1300' && $coderes != 1000) {
 		throw new Exception("ackpoll/poll-ack($id): Code ($coderes) $msg");
 	}
 }