diff --git a/nova/tests/cloud_unittest.py b/nova/tests/cloud_unittest.py
index 40eeb8a2..24472451 100644
--- a/nova/tests/cloud_unittest.py
+++ b/nova/tests/cloud_unittest.py
@@ -40,8 +40,7 @@ class CloudTestCase(test.BaseTestCase):
         super(CloudTestCase, self).setUp()
         self.flags(fake_libvirt=True,
                    fake_storage=True,
-                   fake_users=True,
-                    redis_db=8)
+                   fake_users=True)
 
         self.conn = rpc.Connection.instance()
         logging.getLogger().setLevel(logging.DEBUG)
diff --git a/nova/tests/network_unittest.py b/nova/tests/network_unittest.py
index a2ad89a3..a5d80875 100644
--- a/nova/tests/network_unittest.py
+++ b/nova/tests/network_unittest.py
@@ -32,8 +32,7 @@ class NetworkTestCase(test.TrialTestCase):
         self.flags(fake_libvirt=True,
                    fake_storage=True,
                    fake_network=True,
-                   network_size=32,
-                   redis_db=8)
+                   network_size=32)
         logging.getLogger().setLevel(logging.DEBUG)
         self.manager = users.UserManager.instance()
         try:
diff --git a/nova/tests/node_unittest.py b/nova/tests/node_unittest.py
index 5ecd56d5..3807beeb 100644
--- a/nova/tests/node_unittest.py
+++ b/nova/tests/node_unittest.py
@@ -56,8 +56,7 @@ class NodeConnectionTestCase(test.TrialTestCase):
         super(NodeConnectionTestCase, self).setUp()
         self.flags(fake_libvirt=True,
                    fake_storage=True,
-                   fake_users=True,
-                    redis_db=8)
+                   fake_users=True)
         self.node = node.Node()
 
     def create_instance(self):
diff --git a/nova/tests/storage_unittest.py b/nova/tests/storage_unittest.py
index cbfedbfc..84f3126c 100644
--- a/nova/tests/storage_unittest.py
+++ b/nova/tests/storage_unittest.py
@@ -41,8 +41,7 @@ class StorageTestCase(test.TrialTestCase):
         self.mynode = node.Node()
         self.mystorage = None
         self.flags(fake_libvirt=True,
-                   fake_storage=True,
-                   redis_db=8)
+                   fake_storage=True)
         if FLAGS.fake_storage:
             self.mystorage = storage.FakeBlockStore()
         else:
diff --git a/nova/tests/users_unittest.py b/nova/tests/users_unittest.py
index a226de45..b87faec9 100644
--- a/nova/tests/users_unittest.py
+++ b/nova/tests/users_unittest.py
@@ -34,8 +34,7 @@ class UserTestCase(test.BaseTestCase):
     def setUp(self):
         super(UserTestCase, self).setUp()
         self.flags(fake_libvirt=True,
-                   fake_storage=True,
-                   redis_db=8)
+                   fake_storage=True)
         self.users = users.UserManager.instance()
 
     def test_001_can_create_users(self):