diff --git a/nova/tests/unit/compute/test_compute_cells.py b/nova/tests/unit/compute/test_compute_cells.py
index 6aa36c8e5ebf..9e56b6e2fb05 100644
--- a/nova/tests/unit/compute/test_compute_cells.py
+++ b/nova/tests/unit/compute/test_compute_cells.py
@@ -108,6 +108,7 @@ def deploy_stubs(stubs, api, original_instance=None):
 
 class CellsComputeAPITestCase(test_compute.ComputeAPITestCase):
     def setUp(self):
+        self.flags(use_neutron=False)
         super(CellsComputeAPITestCase, self).setUp()
         global ORIG_COMPUTE_API
         ORIG_COMPUTE_API = self.compute_api