diff --git a/aider/main.py b/aider/main.py
index 88eeab239..f05d4d8e8 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -36,7 +36,7 @@ def setup_git_home(io):
                 "Enter the number of the repository you want to work on, or 'n' for a new project: "
             )
 
-            if choice.lower() == 'n':
+            if choice.lower() == "n":
                 break
 
             try: