diff --git a/sample_data/okh-TEMPLATE.toml b/sample_data/okh-TEMPLATE.toml
index 3eef348..85df782 100644
--- a/sample_data/okh-TEMPLATE.toml
+++ b/sample_data/okh-TEMPLATE.toml
@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2021 onwards Martin Häuer
+# SPDX-FileCopyrightText: 2021 Martin Häuer <martin.haeuer@ose-germany.de>
 #
 # SPDX-License-Identifier: CC0-1.0