diff --git a/scripts/leaflet.py b/scripts/leaflet.py
index 0053a3d..7c3064f 100755
--- a/scripts/leaflet.py
+++ b/scripts/leaflet.py
@@ -703,6 +703,7 @@ if __name__ == "__main__":
     ap_gallery.add_argument("input", nargs="*")
     ap_gallery.add_argument("--html", default=False, action="store_true")
     ap_gallery.add_argument("--recursive", default=False, action="store_true")
+    ap_gallery.add_argument("--reverse", default=False, action="store_true")
     ap_gallery.add_argument("--direction", type=int, default=3, help="cell to recursively expand into, 0-3, default: 3 (bottom-right)")
     ap_gallery.add_argument("--name", default="gallery")
     ap_gallery.set_defaults(func=make_gallery)