diff --git a/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py b/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py
index 3101e501a3d..0496aac1d56 100644
--- a/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py
+++ b/tests/test_litellm/litellm_core_utils/llm_cost_calc/test_llm_cost_calc_utils.py
@@ -1435,6 +1435,7 @@ def test_image_count_billing_does_not_fill_prompt_token_gap():
     )
     assert completion_cost == pytest.approx(expected_completion_cost)
 
+
 def test_character_count_billing_does_not_fill_prompt_token_gap():
     """
     Regression: when character_count pricing is active, gaps between