diff --git a/include/class.ticket.php b/include/class.ticket.php
index 7cc661f9595c6a68e4dc8ee8d47b04b7fd13ddda..a20db42b5bf1aea7e68728a62a3d0e6086e0b136 100644
--- a/include/class.ticket.php
+++ b/include/class.ticket.php
@@ -1878,7 +1878,7 @@ implements RestrictedAccess, Threadable {
                 return new FormattedDate($this->getCloseDate());
             break;
         case 'last_update':
-            return new FormattedDate($this->last_update);
+            return new FormattedDate($this->lastupdate);
         case 'user':
             return $this->getOwner();
         default: