diff --git a/modules/product_kit/purchase.py b/modules/product_kit/purchase.py
index fdb3b428b1..ad83343e66 100644
--- a/modules/product_kit/purchase.py
+++ b/modules/product_kit/purchase.py
@@ -41,7 +41,7 @@ class Purchase(order_mixin('purchase'), metaclass=PoolMeta):
     @classmethod
     @search_shipments_returns('stock.shipment.in.return')
     def search_shipment_returns(cls, name, clause):
-        return super().search_shipments(name, clause)
+        return super().search_shipment_returns(name, clause)
 
     @get_moves
     def get_moves(self, name):
diff --git a/modules/product_kit/sale.py b/modules/product_kit/sale.py
index 046e39c72c..7b5598cb47 100644
--- a/modules/product_kit/sale.py
+++ b/modules/product_kit/sale.py
@@ -41,7 +41,7 @@ class Sale(order_mixin('sale'), metaclass=PoolMeta):
     @classmethod
     @search_shipments_returns('stock.shipment.out.return')
     def search_shipment_returns(cls, name, clause):
-        return super().search_shipments(name, clause)
+        return super().search_shipment_returns(name, clause)
 
     @get_moves
     def get_moves(self, name):