diff --git a/vllm/transformers_utils/tokenizer_group/__init__.py b/vllm/transformers_utils/tokenizer_group/__init__.py
index c223768b16d6b..9d2209575bd36 100644
--- a/vllm/transformers_utils/tokenizer_group/__init__.py
+++ b/vllm/transformers_utils/tokenizer_group/__init__.py
@@ -18,7 +18,7 @@ else:
 def init_tokenizer_from_configs(model_config: ModelConfig,
                                 scheduler_config: SchedulerConfig,
                                 parallel_config: ParallelConfig,
-                                lora_config: LoRAConfig):
+                                lora_config: Optional[LoRAConfig]):
     init_kwargs = dict(tokenizer_id=model_config.tokenizer,
                        enable_lora=bool(lora_config),
                        max_num_seqs=scheduler_config.max_num_seqs,