diff --git a/src/applications/metamta/storage/receivedmail/PhabricatorMetaMTAReceivedMail.php b/src/applications/metamta/storage/receivedmail/PhabricatorMetaMTAReceivedMail.php
index 6200424577..e98c8aa92b 100644
--- a/src/applications/metamta/storage/receivedmail/PhabricatorMetaMTAReceivedMail.php
+++ b/src/applications/metamta/storage/receivedmail/PhabricatorMetaMTAReceivedMail.php
@@ -71,7 +71,7 @@ class PhabricatorMetaMTAReceivedMail extends PhabricatorMetaMTADAO {
         $this->setAuthorPHID($user->getPHID());
       } else {
         $default_author = PhabricatorEnv::getEnvConfig(
-          'metamta.manipest.default-public-author');
+          'metamta.maniphest.default-public-author');
 
         if ($default_author) {
           $user = id(new PhabricatorUser())->loadOneWhere(