diff --git a/preambles/document_default.tex b/preambles/document_default.tex
index 7e6d000..07507ff 100644
--- a/preambles/document_default.tex
+++ b/preambles/document_default.tex
@@ -7,7 +7,7 @@
 %   <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
+% see COPYING-CC-BY-SA-4 for more details
 % ----------------------------------------- %
 \documentclass[%                            % define the general type of document
 	paper=a4,                               % use DIN A4 as the piper size