diff --git a/metagpt/memory/brain_memory.py b/metagpt/memory/brain_memory.py
index f3a3e3563..cdf3d7fbb 100644
--- a/metagpt/memory/brain_memory.py
+++ b/metagpt/memory/brain_memory.py
@@ -164,7 +164,7 @@ class BrainMemory(pydantic.BaseModel):
         if summary:
             await self.set_history_summary(history_summary=summary, redis_key=CONFIG.REDIS_KEY, redis_conf=CONFIG.REDIS)
             return summary
-        raise openai.error.InvalidRequestError("text too long")
+        raise openai.error.InvalidRequestError(message="text too long", param=None)
 
     async def _metagpt_summarize(self, max_words=200, **kwargs):
         if not self.history: