diff --git a/litellm/__init__.py b/litellm/__init__.py
index 57b9f6a71..95c276edf 100644
--- a/litellm/__init__.py
+++ b/litellm/__init__.py
@@ -55,6 +55,7 @@ _known_custom_logger_compatible_callbacks: List = list(
 )
 callbacks: List[Union[Callable, _custom_logger_compatible_callbacks_literal]] = []
 langfuse_default_tags: Optional[List[str]] = None
+langsmith_batch_size: Optional[int] = None
 _async_input_callback: List[Callable] = (
     []
 )  # internal variable - async custom callbacks are routed here.