diff --git a/preambles/document_default.tex b/preambles/document_default.tex
index 628294b..7e6d000 100644
--- a/preambles/document_default.tex
+++ b/preambles/document_default.tex
@@ -4,7 +4,8 @@
 % It is part of a general purpose document.
 % -----------------------------------------
 % Copyright (C) 2020 by Nils Freydank,
-%   <nils.freydank@posteo.de>
+%   <nils.freydank@posteo.de> and others,
+%  see git log for a complete list.
 % License: CC BY-SA 4.0 International.
 % see COPYING-CC-BY-SA for more details
 % ----------------------------------------- %