diff --git a/blazarclient/tests/v1/shell_commands/test_leases.py b/blazarclient/tests/v1/shell_commands/test_leases.py
index 8f16b37..c90728c 100644
--- a/blazarclient/tests/v1/shell_commands/test_leases.py
+++ b/blazarclient/tests/v1/shell_commands/test_leases.py
@@ -328,7 +328,6 @@ class ShowLeaseTestCase(tests.TestCase):
     def test_show_lease(self):
         show_lease, lease_manager = self.create_show_command()
         lease_manager.get.return_value = {'id': FIRST_LEASE}
-        mock.seal(lease_manager)
 
         args = argparse.Namespace(id=FIRST_LEASE)
         expected = [('id',), (FIRST_LEASE,)]
@@ -343,7 +342,6 @@ class ShowLeaseTestCase(tests.TestCase):
             {'id': SECOND_LEASE, 'name': 'second-lease'},
         ]
         lease_manager.get.return_value = {'id': SECOND_LEASE}
-        mock.seal(lease_manager)
 
         args = argparse.Namespace(id='second-lease')
         expected = [('id',), (SECOND_LEASE,)]
@@ -368,7 +366,6 @@ class DeleteLeaseTestCase(tests.TestCase):
     def test_delete_lease(self):
         delete_lease, lease_manager = self.create_delete_command()
         lease_manager.delete.return_value = None
-        mock.seal(lease_manager)
 
         args = argparse.Namespace(id=FIRST_LEASE)
         delete_lease.run(args)
@@ -382,7 +379,6 @@ class DeleteLeaseTestCase(tests.TestCase):
             {'id': SECOND_LEASE, 'name': 'second-lease'},
         ]
         lease_manager.delete.return_value = None
-        mock.seal(lease_manager)
 
         args = argparse.Namespace(id='second-lease')
         delete_lease.run(args)