diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index f91cfa6d829ea3adbb4eff4a4ea7d729d755f545..916bfa8fba0e316de1d5f1c48a331ef71ad47b8c 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,3 +1,6 @@
+# Copyright 2018-2022 Istituto Nazionale di Fisica Nucleare
+# SPDX-License-Identifier: EUPL-1.2
+
 FROM centos:7
 
 # Allow customization of build user ID and name