diff --git a/rma/controllers/main.py b/rma/controllers/main.py
index 7549882f..164b3716 100644
--- a/rma/controllers/main.py
+++ b/rma/controllers/main.py
@@ -125,7 +125,7 @@ class PortalRma(CustomerPortal):
         except exceptions.AccessError:
             return request.redirect("/my")
         report_sudo = request.env.ref("stock.action_report_delivery").sudo()
-        pdf = report_sudo._render_qweb_pdf([picking_sudo.id])[0]
+        pdf = report_sudo._render_qweb_pdf(report_sudo, res_ids=picking_sudo.ids)[0]
         pdfhttpheaders = [
             ("Content-Type", "application/pdf"),
             ("Content-Length", len(pdf)),