diff --git a/litellm/main.py b/litellm/main.py
index 4cba60fccf..ca7b902e2a 100644
--- a/litellm/main.py
+++ b/litellm/main.py
@@ -1476,7 +1476,7 @@ def batch_completion(
     presence_penalty: Optional[float] = None,
     frequency_penalty: Optional[float]=None,
     logit_bias: Optional[dict] = None,
-    user: str = "",
+    user: Optional[str] = None,
     deployment_id = None,
     request_timeout: Optional[int] = None,
     # Optional liteLLM function params