diff --git a/workflow/engine/classes/class.derivation.php b/workflow/engine/classes/class.derivation.php
index 567588251..1649288d8 100644
--- a/workflow/engine/classes/class.derivation.php
+++ b/workflow/engine/classes/class.derivation.php
@@ -941,6 +941,12 @@ class Derivation
                 case TASK_FINISH_TASK:
                     $iAppThreadIndex = $appFields['DEL_THREAD'];
                     $this->case->closeAppThread( $currentDelegation['APP_UID'], $iAppThreadIndex );
+                    if (isset($nextDel["TAS_UID_DUMMY"]) && !$flagTaskAssignTypeIsMultipleInstance) {
+                        $taskDummy = TaskPeer::retrieveByPK($nextDel["TAS_UID_DUMMY"]);
+                        if (preg_match("/^(?:END-MESSAGE-EVENT|END-EMAIL-EVENT)$/", $taskDummy->getTasType())) {
+                            $this->executeEvent($nextDel["TAS_UID_DUMMY"], $appFields, $flagFirstIteration, true);
+                        }
+                    }
                     break;
                 default:
                     //Get all siblingThreads