diff --git a/library/IPA_CodecPort.ttcn b/library/IPA_CodecPort.ttcn
index f9a242b..dfc759c 100644
--- a/library/IPA_CodecPort.ttcn
+++ b/library/IPA_CodecPort.ttcn
@@ -4,11 +4,13 @@
  * towards the IPL4asp port provider, and IPA primitives
  * which carry the decoded IPA data types as payload.
  *
- * (C) 2017 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2017-2018 by Harald Welte <laforge@gnumonks.org>
  * 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_PortType all;