diff --git a/aider/repomap.py b/aider/repomap.py
index db3a1d091..a45a7bb48 100644
--- a/aider/repomap.py
+++ b/aider/repomap.py
@@ -414,7 +414,7 @@ class RepoMap:
         cache_key = (
             tuple(sorted(chat_fnames)),
             tuple(sorted(other_fnames)) if other_fnames else None,
-            max_map_tokens
+            max_map_tokens,
         )
 
         # Check if the result is in the cache