diff --git a/sunnypilot/selfdrive/controls/lib/speed_limit_controller/speed_limit_controller.py b/sunnypilot/selfdrive/controls/lib/speed_limit_controller/speed_limit_controller.py
index 41a06c5719..7a4d4b8ad2 100644
--- a/sunnypilot/selfdrive/controls/lib/speed_limit_controller/speed_limit_controller.py
+++ b/sunnypilot/selfdrive/controls/lib/speed_limit_controller/speed_limit_controller.py
@@ -1,3 +1,9 @@
+"""
+Copyright (c) 2021-, Haibin Wen, sunnypilot, and a number of other contributors.
+
+This file is part of sunnypilot and is licensed under the MIT License.
+See the LICENSE.md file in the root directory for more details.
+"""
 import numpy as np
 import time