diff --git a/docs/user/40_export.rst b/docs/user/40_export.rst
index 848a7f46a8eda4e21b8bcc6814a8be7572234ceb..cdb2f2f23e550a5f27f6c4f6b339aa1dd74d78a5 100644
--- a/docs/user/40_export.rst
+++ b/docs/user/40_export.rst
@@ -9,3 +9,6 @@ a collection of all the students' personal notes as well as all lesson contents.
 
 An alternative path to printing a class register is via the weekly view.
 There, the relevant group can be selected via the filter to print the class book.
+
+.. note::
+   This mechanism can be used for archival purposes required by law.