diff --git a/python/sglang/srt/tokenizer/tiktoken_tokenizer.py b/python/sglang/srt/tokenizer/tiktoken_tokenizer.py
index 8c4c91263..98df443e5 100644
--- a/python/sglang/srt/tokenizer/tiktoken_tokenizer.py
+++ b/python/sglang/srt/tokenizer/tiktoken_tokenizer.py
@@ -121,7 +121,12 @@ class TiktokenTokenizer:
         return self.tokenizer.decode_batch(batch)
 
     def apply_chat_template(
-        self, messages, tokenize, add_generation_prompt, tools=None
+        self,
+        messages,
+        tokenize,
+        add_generation_prompt,
+        tools=None,
+        reasoning_effort=None,
     ):
         ret = self.chat_template_jinja.render(
             messages=messages, add_generation_prompt=add_generation_prompt