diff --git a/base_delivery_carrier_label/models/delivery_carrier.py b/base_delivery_carrier_label/models/delivery_carrier.py
index 35ee778d13..db22be9b5f 100644
--- a/base_delivery_carrier_label/models/delivery_carrier.py
+++ b/base_delivery_carrier_label/models/delivery_carrier.py
@@ -29,7 +29,7 @@ def default_options(self):
     def send_shipping(self, pickings):
         """Handle labels and  if we have them. Expected format is {'labels': [{}, ...]}
         The dicts are input for stock.picking#attach_label"""
-        result = super().send_shipping(pickings)
+        result = None
         # We could want to generate labels calling a method that does not depend
         # on one specific delivery_type.
         # For instance, if we want to generate a default label in case there are not
@@ -38,7 +38,9 @@ def send_shipping(self, pickings):
         # or at the contrary, we could call a common method for multiple delivery_type
         # for instance, in delivery_roulier, the same method is always called for any
         # carrier implemented in roulier lib.
-        if result is None:
+        if pickings.carrier_id:
+            result = super().send_shipping(pickings)
+        if not result:
             result = self.alternative_send_shipping(pickings)
         for result_dict, picking in zip(result, pickings):
             for label in result_dict.get("labels", []):
diff --git a/base_delivery_carrier_label/tests/test_send.py b/base_delivery_carrier_label/tests/test_send.py
index 5b30145085..24904d3005 100644
--- a/base_delivery_carrier_label/tests/test_send.py
+++ b/base_delivery_carrier_label/tests/test_send.py
@@ -1,8 +1,7 @@
 # Copyright 2020 Hunki Enterprises BV
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 import base64
-
-import mock
+from unittest import mock
 
 from odoo.tests.common import Form, TransactionCase