diff --git a/src/conf.py b/src/conf.py
index 9eef3878..330495db 100644
--- a/src/conf.py
+++ b/src/conf.py
@@ -122,6 +122,8 @@ html_theme_options = {
     'extra_nav_links': {
         'source code repository': 'https://code.ungleich.ch/ungleich-public/cdist/',
         'ungleich homepage': 'https://ungleich.ch',
+        'Reference (latest)': 'https://www.cdi.st/manual/latest/cdist-reference.html',
+        'Reference (contrib)': 'https://contrib.cdi.st/',
     },
     'show_powered_by': 'false',
     'sidebar_width' : '300px',