diff --git a/apps/worker/worker_app/tasks/generation.py b/apps/worker/worker_app/tasks/generation.py
index 3c79bfc2a..fcfb3ed66 100644
--- a/apps/worker/worker_app/tasks/generation.py
+++ b/apps/worker/worker_app/tasks/generation.py
@@ -732,6 +732,7 @@ def generate_video(self, task_id: str) -> dict:
                     # ── 4.1 清理渲染临时目录（无论上传成功与否都清理）
                     if render_temp_dir:
                         import shutil as _shutil
+
                         _shutil.rmtree(render_temp_dir, ignore_errors=True)
                         logger.info("[task_id=%s] 渲染临时目录已清理: %s", task_id, render_temp_dir)
                 # ── 4.5 封面帧持久化 ────────────────────────────────────────────