diff --git a/module/task/model.php b/module/task/model.php
index 1fd43263ea..9b465960aa 100755
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -3553,7 +3553,7 @@ class taskModel extends model
     public function updateParentStatus(int $taskID, int $parentID = 0, bool $createAction = true) :void
     {
         /* Get child task info. */
-        $childTask = $this->dao->select('id,assignedTo,parent,path')->from(TABLE_TASK)->where('id')->eq($taskID)->fetch();
+        $childTask = $this->dao->select('id,assignedTo,parent,path,realStarted')->from(TABLE_TASK)->where('id')->eq($taskID)->fetch();
         if(empty($childTask)) return;
 
         $taskIdList = $childTask->path;
diff --git a/module/task/tao.php b/module/task/tao.php
index 26060dc3a9..d3c3c08ce8 100644
--- a/module/task/tao.php
+++ b/module/task/tao.php
@@ -1032,6 +1032,7 @@ class taskTao extends taskModel
                 $data->assignedTo   = !empty($childTask) ? $childTask->assignedTo : $task->openedBy;
                 $data->assignedDate = $now;
             }
+            if($status == 'doing' && !empty($childTask->realStarted)) $data->realStarted = $childTask->realStarted;
 
             $data->finishedBy   = '';
             $data->finishedDate = null;