diff --git a/aider/main.py b/aider/main.py
index 06a525246..ff18aa01b 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -6,6 +6,7 @@ import sys
 import threading
 import traceback
 import webbrowser
+from dataclasses import fields
 from pathlib import Path
 
 import git