diff --git a/src/Api/MailingList/Member.php b/src/Api/MailingList/Member.php
index 4995a9f..27068e6 100644
--- a/src/Api/MailingList/Member.php
+++ b/src/Api/MailingList/Member.php
@@ -219,7 +219,7 @@ class Member extends HttpApi
             }
         }
 
-        if (null === $parameters['name']) {
+        if (array_key_exists('name', $parameters) && null === $parameters['name']) {
             unset($parameters['name']);
         }