diff --git a/validate_workflow.sh b/validate_workflow.sh
index 836695c45184f6bce04c92bf45792e45218962a0..cf96f87c9480acb605c52ce7d144924e0ff16c10 100755
--- a/validate_workflow.sh
+++ b/validate_workflow.sh
@@ -1,5 +1,8 @@
 #!/usr/bin/env bash
-
+# Author: Andreas Romeyke
+# SLUB Dresden, Department Longterm Preservation
+# copyright 2023, licensed under terms of GNU General Public License 3.0,
+# see file LICENSE.txt for details.
 ### META
 # AUTHORS:
 #  - Andreas Romeyke (<Andreas.Romeyke@slub-dresden.de>)