diff --git a/aider/main.py b/aider/main.py
index 10849fc7d..620e17ace 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -305,6 +305,12 @@ def main(argv=None, input=None, output=None, force_git_root=None):
         default=True,
         help="Enable/disable adding .aider* to .gitignore (default: True)",
     )
+    git_group.add_argument(
+        "--aiderignore",
+        metavar="AIDERIGNORE",
+        default=".aiderignore",
+        help="Specify the aider ignore file (default: .aiderignore in git root)",
+    )
     git_group.add_argument(
         "--auto-commits",
         action=argparse.BooleanOptionalAction,