diff --git a/addons/website_theme_install/models/ir_module_module.py b/addons/website_theme_install/models/ir_module_module.py
index d668d7be459..067f7e3a2f9 100644
--- a/addons/website_theme_install/models/ir_module_module.py
+++ b/addons/website_theme_install/models/ir_module_module.py
@@ -70,15 +70,15 @@ class IrModuleModule(models.Model):
                 'name': view.name,
                 'arch': view.arch,
                 'key': view.key,
-                'arch': view.arch,
                 'arch_fs': view.arch_fs,
                 'priority': view.priority,
-                'mode': view.mode,
                 'active': view.active,
                 'inherit_id': view.inherit_id and view.inherit_id.id,
                 'theme_template_id': view.id,
                 'website_id': website.id,
             }
+            if view.mode:  # if not provided, computed automatically (if inherit_id or not)
+                new_view['mode'] = view.mode
             loaded['views'] += self.env['ir.ui.view'].create(new_view)
 
         for page in self._get_module_data('theme.website.page'):