diff --git a/library/IPA_Emulation.ttcnpp b/library/IPA_Emulation.ttcnpp
index a2066ee..3180621 100644
--- a/library/IPA_Emulation.ttcnpp
+++ b/library/IPA_Emulation.ttcnpp
@@ -8,11 +8,14 @@
  * GSUP.  IT hence transcodes messages so the user can work with abstract data types rather
  * than binary messages.  It handles multiple packets inside one TCP segment.
  *
- * (C) 2017-2018 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2017-2019 by 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 IPA_Types all;