diff --git a/aider/coder.py b/aider/coder.py
index ec22e49df..4610c5edd 100755
--- a/aider/coder.py
+++ b/aider/coder.py
@@ -411,10 +411,11 @@ class Coder:
                 self.abs_fnames.add(full_path)
 
                 # Check if the file is already in the repo
-                tracked_files = set(self.repo.git.ls_files().splitlines())
-                relative_fname = self.get_rel_fname(full_path)
-                if relative_fname not in tracked_files and self.repo and self.io.confirm_ask(f"Add {path} to git?"):
-                    self.repo.git.add(full_path)
+                if self.repo:
+                    tracked_files = set(self.repo.git.ls_files().splitlines())
+                    relative_fname = self.get_rel_fname(full_path)
+                    if relative_fname not in tracked_files and self.io.confirm_ask(f"Add {path} to git?"):
+                        self.repo.git.add(full_path)
 
             edited.add(path)
             if utils.do_replace(full_path, original, updated):