diff --git a/libs/community/langchain_community/chat_models/yuan2.py b/libs/community/langchain_community/chat_models/yuan2.py
index 39b0cfaadc0..a05e6065d00 100644
--- a/libs/community/langchain_community/chat_models/yuan2.py
+++ b/libs/community/langchain_community/chat_models/yuan2.py
@@ -87,7 +87,7 @@ class ChatYuan2(BaseChatModel):
     """Holds any model parameters valid for `create` call not explicitly specified."""
 
     yuan2_api_key: Optional[str] = Field(
-       alias="api_key", default_factory=from_env("YUAN2_API_KEY", default=None)
+        alias="api_key", default_factory=from_env("YUAN2_API_KEY", default=None)
     )
     """Automatically inferred from env var `YUAN2_API_KEY` if not provided."""