diff --git a/book_maker/translator/chatgptapi_translator.py b/book_maker/translator/chatgptapi_translator.py
index d212ae8..647bae4 100644
--- a/book_maker/translator/chatgptapi_translator.py
+++ b/book_maker/translator/chatgptapi_translator.py
@@ -46,7 +46,7 @@ GPT4o_MODEL_LIST = [
     "gpt-4o",
     "gpt-4o-2024-05-13",
     "gpt-4o-2024-08-06",
-    "chatgpt-4o-latest"
+    "chatgpt-4o-latest",
 ]