diff --git a/hooks/cinder_hooks.py b/hooks/cinder_hooks.py
index c6307c97..fa185b22 100755
--- a/hooks/cinder_hooks.py
+++ b/hooks/cinder_hooks.py
@@ -200,7 +200,7 @@ def db_changed():
             migrate_database()
         else:
             juju_log('allowed_units either not presented, or local unit '
-                     'not in acl list: %s' % allowed_units)
+                     'not in acl list: %s' % repr(allowed_units))
 
 
 @hooks.hook('pgsql-db-relation-changed')
diff --git a/unit_tests/test_cinder_hooks.py b/unit_tests/test_cinder_hooks.py
index 193c71dc..1cbef574 100644
--- a/unit_tests/test_cinder_hooks.py
+++ b/unit_tests/test_cinder_hooks.py
@@ -245,7 +245,7 @@ class TestChangedHooks(CharmTestCase):
         self.assertFalse(self.migrate_database.called)
 
     def test_db_changed_relation_db_missing_acls(self):
-        'It does not migration when acl list is not present'
+        'No database migration is attempted when ACL list is not present'
         self.relation_get.return_value = None
         self.local_unit.return_value = 'cinder/0'
         self.CONFIGS.complete_contexts.return_value = ['shared-db']