diff --git a/libraries/dl-streamer/samples/gstreamer/python/open_close_valve/open_close_valve_sample.py b/libraries/dl-streamer/samples/gstreamer/python/open_close_valve/open_close_valve_sample.py
index 8d73f0590..9a14aee79 100644
--- a/libraries/dl-streamer/samples/gstreamer/python/open_close_valve/open_close_valve_sample.py
+++ b/libraries/dl-streamer/samples/gstreamer/python/open_close_valve/open_close_valve_sample.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# ==============================================================================
 # Copyright (C) 2025 Intel Corporation
 #
 # SPDX-License-Identifier: MIT