diff --git a/playbooks/files/chaosknoten/configs/wiki/nginx/wiki.ccchh.net.conf b/playbooks/files/chaosknoten/configs/wiki/nginx/wiki.ccchh.net.conf
index 36c1b71..d0e0de6 100644
--- a/playbooks/files/chaosknoten/configs/wiki/nginx/wiki.ccchh.net.conf
+++ b/playbooks/files/chaosknoten/configs/wiki/nginx/wiki.ccchh.net.conf
@@ -23,6 +23,7 @@ server {
     add_header Strict-Transport-Security "max-age=63072000" always;
 
     # Maximum file upload size is 20MB - change accordingly if needed
+    # See: https://www.dokuwiki.org/faq:uploadsize
     client_max_body_size 20M;
     client_body_buffer_size 128k;