diff --git a/chapters/zh-CN/chapter6/8.mdx b/chapters/zh-CN/chapter6/8.mdx
index fc67c8855..c7922a72f 100644
--- a/chapters/zh-CN/chapter6/8.mdx
+++ b/chapters/zh-CN/chapter6/8.mdx
@@ -403,7 +403,9 @@ tokenizer.decode(encoding.ids)
 from transformers import PreTrainedTokenizerFast
 
 wrapped_tokenizer = PreTrainedTokenizerFast(
-    tokenizer_object=tokenizer, bos_token="<|endoftext|>", eos_token="<|endoftext|>",
+    tokenizer_object=tokenizer,
+    bos_token="<|endoftext|>",
+    eos_token="<|endoftext|>",
 )
 ```