diff --git a/aider/coders/patch_prompts.py b/aider/coders/patch_prompts.py
index 9f164df70..a2deddc24 100644
--- a/aider/coders/patch_prompts.py
+++ b/aider/coders/patch_prompts.py
@@ -3,6 +3,7 @@
 from .base_prompts import CoderPrompts
 from .editblock_prompts import EditBlockPrompts
 
+
 class PatchPrompts(EditBlockPrompts):
     main_system = """Act as an expert software developer.
 Always use best practices when coding.