diff --git a/include/Cron.php b/include/Cron.php
index d72b957..9fcaed8 100644
--- a/include/Cron.php
+++ b/include/Cron.php
@@ -207,7 +207,7 @@ EOF;
     }
 
     private function make_reminder_subject($num_expiring, $num_expired) {
-        $subject = "DSV Helpdesk: ";
+        $subject = $this->subject_prefix;
         $messages = array();
         if($num_expiring > 0) {
             $messages[] = $num_expiring." utgående";