diff --git a/nova/tests/unit/compute/test_compute_mgr.py b/nova/tests/unit/compute/test_compute_mgr.py
index 36be23c8fb05..dafd8aab431e 100644
--- a/nova/tests/unit/compute/test_compute_mgr.py
+++ b/nova/tests/unit/compute/test_compute_mgr.py
@@ -6390,7 +6390,7 @@ class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
                 self.context, mock.sentinel.instance,
                 requested_networks=requested_networks)
 
-    @mock.patch('oslo_service.loopingcall._ThreadingEvent.wait',
+    @mock.patch('oslo_service.loopingcall.LoopingCallBase._sleep',
                 new=mock.Mock())
     @mock.patch('nova.compute.manager.ComputeManager._deallocate_network')
     @mock.patch('nova.compute.manager.LOG.warning')
diff --git a/nova/tests/unit/virt/disk/mount/test_api.py b/nova/tests/unit/virt/disk/mount/test_api.py
index b92f43abf47b..a80c7f153149 100644
--- a/nova/tests/unit/virt/disk/mount/test_api.py
+++ b/nova/tests/unit/virt/disk/mount/test_api.py
@@ -29,7 +29,7 @@ MAP_PARTITION = "/dev/mapper/nullp77"
 
 
 # Make RetryDecorator not actually sleep on retries
-@mock.patch('oslo_service.loopingcall._ThreadingEvent.wait', new=mock.Mock())
+@mock.patch('oslo_service.loopingcall.LoopingCallBase._sleep', new=mock.Mock())
 class MountTestCase(test.NoDBTestCase):
     def _test_map_dev(self, partition):
         mount = api.Mount(mock.sentinel.image, mock.sentinel.mount_dir)
diff --git a/nova/tests/unit/virt/libvirt/test_guest.py b/nova/tests/unit/virt/libvirt/test_guest.py
index 04c2b812fdde..4943b2dfa79d 100644
--- a/nova/tests/unit/virt/libvirt/test_guest.py
+++ b/nova/tests/unit/virt/libvirt/test_guest.py
@@ -35,7 +35,7 @@ if sys.version_info > (3,):
 
 
 # Make RetryDecorator not actually sleep on retries
-@mock.patch('oslo_service.loopingcall._ThreadingEvent.wait', new=mock.Mock())
+@mock.patch('oslo_service.loopingcall.LoopingCallBase._sleep', new=mock.Mock())
 class GuestTestCase(test.NoDBTestCase):
 
     def setUp(self):