diff --git a/odoo-stubs/http.pyi b/odoo-stubs/http.pyi
index f34cb49..cc74c03 100644
--- a/odoo-stubs/http.pyi
+++ b/odoo-stubs/http.pyi
@@ -33,6 +33,7 @@ class WebRequest:
     endpoint_arguments: Any = ...
     auth_method: Any = ...
     website = Environment()['website']
+    lang = Environment()['res.lang']
     _cr: Cursor = ...
     _uid: int = ...
     _context: dict = ...