diff --git a/py-polars/tests/unit/streaming/test_streaming.py b/py-polars/tests/unit/streaming/test_streaming.py
index 9b4a2e66820e..225c0b97553c 100644
--- a/py-polars/tests/unit/streaming/test_streaming.py
+++ b/py-polars/tests/unit/streaming/test_streaming.py
@@ -75,6 +75,7 @@ def test_streaming_streamable_functions(monkeypatch: Any, capfd: Any) -> None:
 
 
 @pytest.mark.slow
+@pytest.mark.may_fail_auto_streaming
 def test_cross_join_stack() -> None:
     a = pl.Series(np.arange(100_000)).to_frame().lazy()
     t0 = time.time()