diff --git a/aidge_core/utils.py b/aidge_core/utils.py
index 48b96a6aab3a1ec827cf48e5fc3dbb0351bfa0e7..df1a6f8b9798560d872fd93404e4436d9c009dd5 100644
--- a/aidge_core/utils.py
+++ b/aidge_core/utils.py
@@ -1,3 +1,13 @@
+"""
+Copyright (c) 2023 CEA-List
+
+This program and the accompanying materials are made available under the
+terms of the Eclipse Public License 2.0 which is available at
+http://www.eclipse.org/legal/epl-2.0.
+
+SPDX-License-Identifier: EPL-2.0
+"""
+
 import queue
 import threading
 import subprocess