diff --git a/lib/Util.php b/lib/Util.php
index 0941a26..3fe3290 100644
--- a/lib/Util.php
+++ b/lib/Util.php
@@ -442,6 +442,10 @@ public function getDCVEMailAddressList(array $params)
 
         if ($responseArray['errorCode'] == 0) {
             $result = new GetDCVEMailAddressListResult();
+            
+            if (isset($responseArray['whois_email'][0]) && $responseArray['whois_email'][0] == 'none') {
+                unset($responseArray['whois_email'][0]);
+            }
 
             $result
                 ->setDomainName($responseArray['domain_name'])