diff --git a/tests/v1/e2e/test_async_scheduling.py b/tests/v1/e2e/test_async_scheduling.py
index c320b7c91e76d..137a5e6edef2e 100644
--- a/tests/v1/e2e/test_async_scheduling.py
+++ b/tests/v1/e2e/test_async_scheduling.py
@@ -101,6 +101,8 @@ def test_with_spec_decoding(monkeypatch: pytest.MonkeyPatch):
     spec_config_short = spec_config | {"max_model_len": 50}
 
     test_sampling_params = [
+        dict(),
+        dict(logprobs=2),
         dict(presence_penalty=-1.0),
         dict(bad_words=["the", " the"]),
         dict(logprobs=2),