diff --git a/src/pylorax/cmdline.py b/src/pylorax/cmdline.py
index 8388e8ee..df79310f 100644
--- a/src/pylorax/cmdline.py
+++ b/src/pylorax/cmdline.py
@@ -305,8 +305,6 @@ def lmc_parser(dracut_default=""):
     parser.add_argument("--volid", default=None, help="volume id")
     parser.add_argument("--squashfs-only", action="store_true", default=False,
                         help="Use a plain squashfs filesystem for the runtime.")
-    parser.add_argument("--squashfs_args",
-                        help="additional squashfs args")
     parser.add_argument("--timeout", default=None, type=int,
                         help="Cancel installer after X minutes")