diff --git a/app/Tasks/AutoArchivedTask.php b/app/Tasks/AutoArchivedTask.php
index a9150e76e..e1d9169ca 100644
--- a/app/Tasks/AutoArchivedTask.php
+++ b/app/Tasks/AutoArchivedTask.php
@@ -42,6 +42,7 @@ class AutoArchivedTask extends AbstractTask
             ->whereNotNull('project_tasks.complete_at')
             ->where('project_tasks.complete_at', '<=', Carbon::now()->subDays($archivedDay))
             ->where('project_tasks.archived_userid', 0)
+            ->where('project_tasks.parent_id', 0)
             ->whereNull('project_tasks.archived_at')
             ->where('projects.archive_method', '!=', 'custom')
             ->take(100)
@@ -63,6 +64,7 @@ class AutoArchivedTask extends AbstractTask
             ->join('projects', 'projects.id', '=', 'project_tasks.project_id')
             ->whereNotNull('project_tasks.complete_at')
             ->where('project_tasks.archived_userid', 0)
+            ->where('project_tasks.parent_id', 0)
             ->whereNull('project_tasks.archived_at')
             ->where('projects.archive_method', 'custom')
             ->whereRaw("DATEDIFF(NOW(), {$prefix}project_tasks.complete_at) >= {$prefix}projects.archive_days")