diff --git a/test/commands/extended/promote_transaction_test.py b/test/commands/extended/promote_transaction_test.py
index b8e9c4e..99a4647 100644
--- a/test/commands/extended/promote_transaction_test.py
+++ b/test/commands/extended/promote_transaction_test.py
@@ -401,6 +401,7 @@ async def test_not_promotable(self):
 
     self.adapter.seed_response('checkConsistency', {
       'state': False,
+      'info': 'Something went terribly wrong.',
     })
 
     with self.assertRaises(BadApiResponse):