diff --git a/purchase_request.py b/purchase_request.py
index 8d12eacdac..de5778a82d 100644
--- a/purchase_request.py
+++ b/purchase_request.py
@@ -261,7 +261,7 @@ class PurchaseRequest(metaclass=PoolMeta):
         supplier_pattern['company'] = company.id
 
         supplier, purchase_date = cls.find_best_supplier(product,
-            shortage_date)
+            shortage_date, **supplier_pattern)
 
         uom = product.purchase_uom or product.default_uom
         target_quantity = order_point.target_quantity if order_point else 0.0