diff --git a/opencompass/models/openai_api.py b/opencompass/models/openai_api.py
index 6a6a8542..52df6e43 100644
--- a/opencompass/models/openai_api.py
+++ b/opencompass/models/openai_api.py
@@ -700,7 +700,8 @@ class OpenAISDK(OpenAI):
                         )
                     if content:
                         return reasoning_content + self.think_tag + content
-                    return reasoning_content
+                    else:
+                        return reasoning_content
 
                 return content