diff --git a/fupogfakta/tests.py b/fupogfakta/tests.py
index 0e7811b..36fde14 100644
--- a/fupogfakta/tests.py
+++ b/fupogfakta/tests.py
@@ -131,6 +131,10 @@ class FupOgFaktaExtractionSliceTests(TestCase):
         self.assertGreaterEqual(stale_round_question.shown_at, before_transition)
         self.assertLessEqual(stale_round_question.shown_at, after_transition)
         self.assertNotEqual(stale_round_question.shown_at, stale_shown_at)
+        self.assertEqual(result.response_payload["round_question"]["shown_at"], stale_round_question.shown_at.isoformat())
+        expected_deadline = stale_round_question.shown_at + timedelta(seconds=result.round_config.lie_seconds)
+        self.assertEqual(result.response_payload["round_question"]["lie_deadline_at"], expected_deadline.isoformat())
+        self.assertGreater(expected_deadline, before_transition)
         self.assertEqual(stale_round_question.mixed_answers, [])
         self.assertEqual(stale_round_question.lies.count(), 0)
         self.assertEqual(stale_round_question.guesses.count(), 0)