diff --git a/opencompass/datasets/subjective/commonbench.py b/opencompass/datasets/subjective/commonbench.py
index 9db15f16..7fee7528 100644
--- a/opencompass/datasets/subjective/commonbench.py
+++ b/opencompass/datasets/subjective/commonbench.py
@@ -7,6 +7,7 @@ from opencompass.registry import DICT_POSTPROCESSORS
 
 from .utils import get_judgeanswer_and_reference
 
+
 def post_process(judgement: str):
     """Input a string like below: