diff --git a/library/Osmocom_CTRL_Adapter.ttcn b/library/Osmocom_CTRL_Adapter.ttcn
index f1002bd..93e893f 100644
--- a/library/Osmocom_CTRL_Adapter.ttcn
+++ b/library/Osmocom_CTRL_Adapter.ttcn
@@ -1,6 +1,15 @@
 module Osmocom_CTRL_Adapter {
 
-/* Module that test suites can 'inherit' in order to have a CTRL connection to the IUT which they're testing */
+/* Module that test suites can 'inherit' in order to have a CTRL connection to the IUT which they're testing
+ * (C) 2018 Harald Welte <laforge@gnumonks.org>
+ * contributions by sysmocom - s.f.m.c. GmbH
+ * All rights reserved.
+ *
+ * Released under the terms of GNU General Public License, Version 2 or
+ * (at your option) any later version.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 import from IPL4asp_Types all;