diff --git a/python/sglang/lang/backend/litellm.py b/python/sglang/lang/backend/litellm.py
index f6dac6293..5803b5431 100644
--- a/python/sglang/lang/backend/litellm.py
+++ b/python/sglang/lang/backend/litellm.py
@@ -61,7 +61,7 @@ class LiteLLM(BaseBackend):
             model=self.model_name,
             messages=messages,
             **self.client_params,
-            **sampling_params.to_anthropic_kwargs(),
+            **sampling_params.to_litellm_kwargs(),
         )
         comp = ret.choices[0].message.content