diff --git a/tests/batches_tests/test_openai_batches_and_files.py b/tests/batches_tests/test_openai_batches_and_files.py
index 0aed224c25..a64f208b3f 100644
--- a/tests/batches_tests/test_openai_batches_and_files.py
+++ b/tests/batches_tests/test_openai_batches_and_files.py
@@ -557,6 +557,7 @@ async def test_avertex_batch_prediction(monkeypatch):
             mock_get_response = MagicMock()
             mock_get_response.json.return_value = mock_vertex_batch_response
             mock_get_response.status_code = 200
+            mock_get_response.is_redirect = False
             mock_get_response.raise_for_status.return_value = None
             mock_get.return_value = mock_get_response