diff --git a/hlr/HLR_EUSE.ttcn b/hlr/HLR_EUSE.ttcn
index fbb496c..ef07ca6 100644
--- a/hlr/HLR_EUSE.ttcn
+++ b/hlr/HLR_EUSE.ttcn
@@ -6,7 +6,15 @@
  * function, which will return whatever PDU to send in response back to the HLR.
  */
 
-/* (C) 2018 by Harald Welte <laforge@gnumonks.org> */
+
+/* (C) 2018 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
+ */
 
 module HLR_EUSE {