diff --git a/python_tests/test_api.py b/python_tests/test_api.py
index 75243f30..e0c2e1c8 100644
--- a/python_tests/test_api.py
+++ b/python_tests/test_api.py
@@ -161,7 +161,6 @@ class APITestCase(TestCase):
         study = create_study(storage=storage, n_generate=3)
         for _ in range(3):
             trial = study.ask()
-            study.mark_comparison_ready(trial)
 
         app = create_app(storage)
         study_id = study._study._study_id
diff --git a/python_tests/test_preferential_history.py b/python_tests/test_preferential_history.py
index ab524b90..51c9b0f8 100644
--- a/python_tests/test_preferential_history.py
+++ b/python_tests/test_preferential_history.py
@@ -19,7 +19,6 @@ def test_report_and_get_choices(storage_supplier: Callable[[], StorageSupplier])
         for _ in range(5):
             trial = study.ask()
             trial.suggest_float("x", 0, 1)
-            study.mark_comparison_ready(trial)
 
         study_id = study._study._study_id