diff --git a/setup/lib/functions.py b/setup/lib/functions.py
index 01b173f3..a437f2ea 100644
--- a/setup/lib/functions.py
+++ b/setup/lib/functions.py
@@ -253,8 +253,9 @@ class DatenpolFunctions(object):
     def install_website_modules(self):
         """Website Module installieren"""
 
-        for module in self.config.multi_website_modules:
-            self.install_modules(module=module)
+        mod_ids = self.odoo.env['ir.module.module'].search(
+            [('name', 'in', self.config.multi_website_modules), ('state', '!=', 'installed')])
+        self.odoo.env['ir.module.module'].button_immediate_install(mod_ids)
         return True
 
     def setup_websites(self):