diff --git a/fastchat/llm_judge/common.py b/fastchat/llm_judge/common.py
index 57fa70048..d2640d601 100644
--- a/fastchat/llm_judge/common.py
+++ b/fastchat/llm_judge/common.py
@@ -189,7 +189,7 @@ def run_judge_single(question, answer, judge, ref_answer, multi_turn=False):
     return rating, user_prompt, judgment
 
 
-def play_a_match_single(match: MatchPair, output_file: str):
+def play_a_match_single(match: MatchSingle, output_file: str):
     question, model, answer, judge, ref_answer, multi_turn = (
         match.question,
         match.model,