diff --git a/wien2kparser/parser_wien2k.py b/wien2kparser/parser_wien2k.py
index ba68612afef3af8f6dcdc4bd3b287a831f0b8193..87c10c9cd127f42d1f12116c0c0b80fb328a242b 100644
--- a/wien2kparser/parser_wien2k.py
+++ b/wien2kparser/parser_wien2k.py
@@ -22,6 +22,7 @@ from nomad.parsing.legacy import CoESimpleMatcherParser
 ################################################################
 
 # Copyright 2016-2018 Daria M. Tomecka, Fawzi Mohamed
+# Copyright 2020 Pavel Ondračka
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.