diff --git a/archy-usb-ctl.sh b/archy-usb-ctl.sh
index 1ed9c92..b6d70d8 100755
--- a/archy-usb-ctl.sh
+++ b/archy-usb-ctl.sh
@@ -1,32 +1,52 @@
 #!/bin/bash
+#
+# This script is indended to decrypt, mount and chroot in a LUKS+EFI+LVM USB
 
 if [[ $UID != 0 ]]; then
 	printf "You need root permissions to use this script!\n"
 	exit 1
 fi
 
+usage()
+{
+	echo -e "\nUsage: $(basename "$0") [options] [luks_device]\n\n" \
+		"Options:\n" \
+		"\t-m, --mount          Mount the LUKS device (Default)\n" \
+		"\t-u, --umount         Unmount the LUKS device\n" \
+		"\t-n, --nochroot       Don't run arch-chroot\n" \
+		"\t-c, --chroot         Run arch-chroot (Default)\n" \
+		"\t-h, --help           Display this message\n"
+}
+
+# Mute lvm utilities
 export LVM_SUPPRESS_FD_WARNINGS=true
+
+# Some sane defaults
 ACTION=mount
 RUN_CHROOT=true
 USB_LUKS_PART=
 
 # Call getopt to validate the provided input. 
-options=$(getopt -o cmnu -l chroot,nochroot,mount,umount -- "$@")
+if ! options=$(getopt -o chmnu -l chroot,nochroot,mount,umount,help -- "$@"); then
+	usage
+	exit 1
+fi
 eval set -- "$options"
-while [ $# -gt 0 ]; do
+while true; do
 	case "$1" in
 	(-m|--mount)	ACTION=mount ;;
 	(-u|--umount)	ACTION=umount ;;
 	(-n|--nochroot)	RUN_CHROOT=false ;;
 	(-c|--chroot)	RUN_CHROOT=true ;;
+	(-h|--help)	usage; exit 1;;
 	(--)		shift; break;;
-	(-*)		echo "invalid option: $1" 1>&2; exit 1;;
-	(*)		break;;
+	(*)		usage; break;;
 	esac
 	shift
 done
 if [ "$#" -gt 1 ]; then
-	echo "Only 1 additional argument possible! Got $#: $*"
+	echo "error: Only 1 device argument possible! Got $#: $*"
+	usage
 	exit 1
 fi