diff --git a/web_demo.py b/web_demo.py
index 0a0914a..11d7a56 100755
--- a/web_demo.py
+++ b/web_demo.py
@@ -14,6 +14,7 @@ import torch
 from transformers import AutoModelForCausalLM, AutoTokenizer
 from transformers.generation import GenerationConfig
 
+
 DEFAULT_CKPT_PATH = 'Qwen/Qwen-7B-Chat'