diff --git a/plinth/modules/ikiwiki/__init__.py b/plinth/modules/ikiwiki/__init__.py
index a38e85567..6883ca41d 100644
--- a/plinth/modules/ikiwiki/__init__.py
+++ b/plinth/modules/ikiwiki/__init__.py
@@ -58,8 +58,6 @@ class IkiwikiApp(app_module.App):
                               'ikiwiki:index', parent_url_name='apps')
         self.add(menu_item)
 
-        self.refresh_sites()
-
         packages = Packages('packages-ikiwiki', [
             'ikiwiki', 'libdigest-sha-perl', 'libxml-writer-perl',
             'xapian-omega', 'libsearch-xapian-perl', 'libimage-magick-perl'
@@ -83,6 +81,10 @@ class IkiwikiApp(app_module.App):
                                        **manifest.backup)
         self.add(backup_restore)
 
+    def post_init(self):
+        """Perform post initialization operations."""
+        self.refresh_sites()
+
     def add_shortcut(self, site, title):
         """Add an ikiwiki shortcut to frontpage."""
         shortcut = frontpage.Shortcut('shortcut-ikiwiki-' + site, title,