diff --git a/addons/portal_rating/controllers/portal_rating.py b/addons/portal_rating/controllers/portal_rating.py
index 06d1fe06ac1..2e8e4884730 100644
--- a/addons/portal_rating/controllers/portal_rating.py
+++ b/addons/portal_rating/controllers/portal_rating.py
@@ -7,7 +7,7 @@ from odoo.http import request
 
 class PortalRating(http.Controller):
 
-    @http.route(['/website/rating/comment'], type='json', auth="user", method=['POST'], website=True)
+    @http.route(['/website/rating/comment'], type='json', auth="user", methods=['POST'], website=True)
     def publish_rating_comment(self, rating_id, publisher_comment):
         rating = request.env['rating.rating'].search([('id', '=', int(rating_id))])
         if not rating:
diff --git a/odoo/http.py b/odoo/http.py
index 2262afc6bb5..0676f3a7ff2 100644
--- a/odoo/http.py
+++ b/odoo/http.py
@@ -514,6 +514,10 @@ def route(route=None, **kw):
             else:
                 routes = [route]
             routing['routes'] = routes
+            wrong = routing.pop('method', None)
+            if wrong:
+                kw.setdefault('methods', wrong)
+                _logger.warning("<function %s.%s> defined with invalid routing parameter 'method', assuming 'methods'", f.__module__, f.__name__)
 
         @functools.wraps(f)
         def response_wrap(*args, **kw):