diff --git a/searx/settings_defaults.py b/searx/settings_defaults.py
index 5ec5ae0a6..9f8539755 100644
--- a/searx/settings_defaults.py
+++ b/searx/settings_defaults.py
@@ -150,7 +150,7 @@ SCHEMA = {
         'new_issue_url': SettingsValue(str, 'https://github.com/searxng/searxng/issues/new'),
         'docs_url': SettingsValue(str, 'https://docs.searxng.org'),
         'public_instances': SettingsValue((False, str), 'https://searx.space'),
-        'wiki_url': SettingsValue(str, 'https://github.com/searxng/searxng/wiki'),
+        'wiki_url': SettingsValue((False, str), 'https://github.com/searxng/searxng/wiki'),
         'custom': SettingsValue(dict, {'links': {}}),
     },
     'search': {