diff --git a/include/class.filter_action.php b/include/class.filter_action.php
index 65a316c4d00690a0e040688f71f338c49f650cf5..d2d2bef95eebd66d255f470413ce4fc9a96f6aa1 100644
--- a/include/class.filter_action.php
+++ b/include/class.filter_action.php
@@ -306,7 +306,7 @@ class FA_AssignPriority extends TriggerAction {
     function apply(&$ticket, array $info) {
         $config = $this->getConfiguration();
         if ($config['priority'])
-            $ticket['priority_id'] = $config['priority']->getId();
+            $ticket['priorityId'] = $config['priority'];
     }
 
     function getConfigurationOptions() {