diff --git a/aider/args.py b/aider/args.py
index 2b18fb6a0..ab1839c41 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -201,6 +201,12 @@ def get_parser(default_config_files, git_root):
         default=None,
         help="Max number of tokens to use for repo map, use 0 to disable (default: 1024)",
     )
+    group.add_argument(
+        "--map-refresh",
+        choices=["auto", "always", "files", "manual"],
+        default="auto",
+        help="Control when the repo map is refreshed (default: auto)",
+    )
     group.add_argument(
         "--max-chat-history-tokens",
         type=int,