diff --git a/modelscope/pipelines/cv/action_detection_pipeline.py b/modelscope/pipelines/cv/action_detection_pipeline.py
index 72335d5b..74d1862e 100644
--- a/modelscope/pipelines/cv/action_detection_pipeline.py
+++ b/modelscope/pipelines/cv/action_detection_pipeline.py
@@ -1,3 +1,5 @@
+# Copyright (c) Alibaba, Inc. and its affiliates.
+
 import math
 import os.path as osp
 from typing import Any, Dict