diff --git a/aider/coders/udiff_coder.py b/aider/coders/udiff_coder.py
index 4c89af7c4..7c276408b 100644
--- a/aider/coders/udiff_coder.py
+++ b/aider/coders/udiff_coder.py
@@ -45,6 +45,7 @@ other_hunks_applied = (
 
 class UnifiedDiffCoder(Coder):
     """A coder that uses unified diff format for code modifications."""
+
     edit_format = "udiff"
     gpt_prompts = UnifiedDiffPrompts()