diff --git a/aider/args.py b/aider/args.py
index eb1bb71d3..a77d28040 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -213,6 +213,12 @@ def get_parser(default_config_files, git_root):
         default=False,
         help="Enable caching of prompts (default: False)",
     )
+    group.add_argument(
+        "--map-multiplier-no-files",
+        type=float,
+        default=2,
+        help="Multiplier for map tokens when no files are specified (default: 2)",
+    )
     group.add_argument(
         "--max-chat-history-tokens",
         type=int,