diff --git a/include/class.upgrader.php b/include/class.upgrader.php
index 2c898f646d7dd392790a55007774be1ae54c92a3..012f88d1160bea1fb09d2104129d19e8fccebd3e 100644
--- a/include/class.upgrader.php
+++ b/include/class.upgrader.php
@@ -67,9 +67,9 @@ class Upgrader extends SetupWizard {
 
         $subject = 'Upgrader Error';
         if($email) {
-            $email->send($thistaff->getEmail(), $subject, $error);
+            $email->send($thisstaff->getEmail(), $subject, $error);
         } else {//no luck - try the system mail.
-            Mailer::sendmail($thistaff->getEmail(), $subject, $error, sprintf('"osTicket Alerts"<%s>', $thistaff->getEmail()));
+            Mailer::sendmail($thisstaff->getEmail(), $subject, $error, sprintf('"osTicket Alerts"<%s>', $thisstaff->getEmail()));
         }
 
     }