diff --git a/.gitattributes b/.gitattributes
index c04fa91..b16c365 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2021 Christopher Kerr <chris.kerr@mykolab.ch>
+# SPDX-License-Identifier: CC0-1.0
+
 # Arbin data files
 *.res filter=lfs diff=lfs merge=lfs -text
 # Bio-Logic data files