diff --git a/aider/args_formatter.py b/aider/args_formatter.py
index 30a21a7b6..7e58c604e 100644
--- a/aider/args_formatter.py
+++ b/aider/args_formatter.py
@@ -148,9 +148,9 @@ class YamlHelpFormatter(argparse.HelpFormatter):
             parts.append(f"#{switch}: xxx")
             parts.append("## Specify multiple values like this:")
             parts.append(f"#{switch}:")
-            parts.append(f"#  - xxx")
-            parts.append(f"#  - yyy")
-            parts.append(f"#  - zzz")
+            parts.append("#  - xxx")
+            parts.append("#  - yyy")
+            parts.append("#  - zzz")
         else:
             if switch.endswith("color"):
                 parts.append(f'#{switch}: "xxx"\n')