diff --git a/addons/sale/models/sale.py b/addons/sale/models/sale.py
index 7d2a85e060a..d81e269be42 100644
--- a/addons/sale/models/sale.py
+++ b/addons/sale/models/sale.py
@@ -297,7 +297,7 @@ class SaleOrder(models.Model):
         """
         for order in self:
             dates_list = []
-            for line in order.order_line.filtered(lambda x: x.state != 'cancel' and not x._is_delivery()):
+            for line in order.order_line.filtered(lambda x: x.state != 'cancel' and not x._is_delivery() and not x.display_type):
                 dt = line._expected_date()
                 dates_list.append(dt)
             if dates_list:
diff --git a/addons/sale_stock/models/sale_order.py b/addons/sale_stock/models/sale_order.py
index 93561f2fa3b..2524c91c548 100644
--- a/addons/sale_stock/models/sale_order.py
+++ b/addons/sale_stock/models/sale_order.py
@@ -83,7 +83,7 @@ class SaleOrder(models.Model):
         super(SaleOrder, self)._compute_expected_date()
         for order in self:
             dates_list = []
-            for line in order.order_line.filtered(lambda x: x.state != 'cancel' and not x._is_delivery()):
+            for line in order.order_line.filtered(lambda x: x.state != 'cancel' and not x._is_delivery() and not x.display_type):
                 dt = line._expected_date()
                 dates_list.append(dt)
             if dates_list: