diff --git a/plinth/modules/mediawiki/views.py b/plinth/modules/mediawiki/views.py
index 173cd1937..f08b5e789 100644
--- a/plinth/modules/mediawiki/views.py
+++ b/plinth/modules/mediawiki/views.py
@@ -28,7 +28,7 @@ class MediaWikiAppView(views.AppView):
         initial = super().get_initial()
         initial.update({
             'enable_public_registrations':
-                privileged.get_config()['public_registration'],
+                privileged.public_registrations('status'),
             'enable_private_mode':
                 privileged.private_mode('status'),
             'default_skin':