diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 6f58dc470..99741b651 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -1371,7 +1371,9 @@ class Coder:
                 self.cur_messages[-1]["content"] += "\n^C KeyboardInterrupt"
             else:
                 self.cur_messages += [dict(role="user", content="^C KeyboardInterrupt")]
-            self.cur_messages += [dict(role="assistant", content="I see that you interrupted my previous reply.")]
+            self.cur_messages += [
+                dict(role="assistant", content="I see that you interrupted my previous reply.")
+            ]
             return
 
         edited = self.apply_updates()