diff --git a/zaza/openstack/charm_tests/designate/tests.py b/zaza/openstack/charm_tests/designate/tests.py
index a96e931..5b6e8e9 100644
--- a/zaza/openstack/charm_tests/designate/tests.py
+++ b/zaza/openstack/charm_tests/designate/tests.py
@@ -35,7 +35,7 @@ class BaseTests(BaseDesignateTest):
         logging.debug('Checking system services on units...')
 
         model.block_until_service_status(
-            self.application_name,
+            self.lead_unit,
             self.designate_svcs,
             'running',
             self.model_name,