diff --git a/py-polars/tests/unit/sql/test_group_by.py b/py-polars/tests/unit/sql/test_group_by.py
index e4cf20a62883..83e91e78ed5d 100644
--- a/py-polars/tests/unit/sql/test_group_by.py
+++ b/py-polars/tests/unit/sql/test_group_by.py
@@ -86,7 +86,7 @@ def test_group_by_all() -> None:
             COUNT(*) AS n
         FROM self
         GROUP BY ALL
-        ORDER BY a
+        ORDER BY ALL
         """
     )
     expected = pl.DataFrame(