diff --git a/aider/watch.py b/aider/watch.py
index 82285ccef..7ae4d06ba 100644
--- a/aider/watch.py
+++ b/aider/watch.py
@@ -10,6 +10,7 @@ from watchfiles import watch
 
 from aider.dump import dump  # noqa
 
+
 def is_source_file(path: Path) -> bool:
     """
     Check if a file is a source file that uses # or // style comments.