diff --git a/module/task/zen.php b/module/task/zen.php
index d8e6f757af..9308df56c6 100644
--- a/module/task/zen.php
+++ b/module/task/zen.php
@@ -436,6 +436,7 @@ class taskZen extends task
         $now  = helper::now();
         $task = form::data($this->config->task->form->edit)
             ->add('id', $task->id)
+            ->add('lastEditedDate', $now)
             ->setIF(!$task->assignedTo && !empty($oldTask->team) && !empty($this->post->team), 'assignedTo', $this->task->getAssignedTo4Multi($this->post->team, $oldTask))
             ->setIF($task->assignedTo != $oldTask->assignedTo, 'assignedDate', $now)
             ->setIF($task->mode == 'single', 'mode', '')