diff --git a/addons/website_theme_install/models/ir_module_module.py b/addons/website_theme_install/models/ir_module_module.py
index 7207a613ade..d668d7be459 100644
--- a/addons/website_theme_install/models/ir_module_module.py
+++ b/addons/website_theme_install/models/ir_module_module.py
@@ -73,6 +73,7 @@ class IrModuleModule(models.Model):
                 '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,
diff --git a/addons/website_theme_install/models/theme_models.py b/addons/website_theme_install/models/theme_models.py
index 428fa55a559..53463dc66c1 100644
--- a/addons/website_theme_install/models/theme_models.py
+++ b/addons/website_theme_install/models/theme_models.py
@@ -20,6 +20,7 @@ class ThemeView(models.Model):
     key = fields.Char()
     type = fields.Char()
     priority = fields.Integer(default=16, required=True)
+    mode = fields.Selection([('primary', "Base view"), ('extension', "Extension View")])
     active = fields.Boolean(default=True)
     arch = fields.Text()
     arch_fs = fields.Char(default=compute_arch_fs)