Initialise openstack.Manager() with config from self.nova.
diff --git a/kong/tests/test_server_meta.py b/kong/tests/test_server_meta.py
index eb870a0..44630bc 100644
--- a/kong/tests/test_server_meta.py
+++ b/kong/tests/test_server_meta.py
@@ -9,7 +9,7 @@
     @classmethod
     def setUpClass(self):
         super(ServersMetadataTest, self).setUp()
-        self.os = openstack.Manager()
+        self.os = openstack.Manager(self.nova)
         self.image_ref = self.os.config.env.image_ref
         self.flavor_ref = self.os.config.env.flavor_ref