diff --git a/tools/patman/cmdline.py b/tools/patman/cmdline.py
index 912d488..0ae92f8 100644
--- a/tools/patman/cmdline.py
+++ b/tools/patman/cmdline.py
@@ -215,7 +215,7 @@
     # If we have a command, it is safe to parse all arguments
     if args.cmd:
         args = parser.parse_args(argv)
-    else:
+    elif not args.full_help:
         # No command, so insert it after the known arguments and before the ones
         # that presumably relate to the 'send' subcommand
         nargs = len(rest)