diff --git a/tests/unit/modules/postgres_test.py b/tests/unit/modules/postgres_test.py
index d9f5546090..55e6607f33 100644
--- a/tests/unit/modules/postgres_test.py
+++ b/tests/unit/modules/postgres_test.py
@@ -341,6 +341,7 @@ class PostgresTestCase(TestCase):
                           'expiry time': None,
                           'can login': True,
                           'can update system catalogs': True,
+                          'groups': [],
                           'inherits privileges': True}})
 
     @patch('salt.modules.postgres._run_psql',