diff --git a/.reuse/dep5 b/.reuse/dep5
index 836a0a8..d968ced 100644
--- a/.reuse/dep5
+++ b/.reuse/dep5
@@ -6,3 +6,7 @@ Source: https://codeberg.org/openpgp/notes
 Files: book/source/diag/*.png  book/source/diag/*.svg
 Copyright: 2023  The "Notes on OpenPGP" project
 License: CC-BY-SA-4.0
+
+Files: book/source/mermaid/*.md  book/source/mermaid/*.png
+Copyright: 2023  The "Notes on OpenPGP" project
+License: CC-BY-SA-4.0