diff --git a/cinder/tests/scheduler/test_filter_scheduler.py b/cinder/tests/scheduler/test_filter_scheduler.py
index 05b9d1d809..f1e2b5bc9b 100644
--- a/cinder/tests/scheduler/test_filter_scheduler.py
+++ b/cinder/tests/scheduler/test_filter_scheduler.py
@@ -96,6 +96,7 @@ def _fake_weigh_objects(_self, functions, hosts, options):
             return [weights.WeighedHost(host_state, self.next_weight)]
 
         sched = fakes.FakeFilterScheduler()
+        sched.host_manager = fakes.FakeHostManager()
         fake_context = context.RequestContext('user', 'project',
                                               is_admin=True)