diff --git a/zfs/zfs-media-drive.sh b/zfs/zfs-media-drive.sh
index 9a5771b..c73bfbd 100644
--- a/zfs/zfs-media-drive.sh
+++ b/zfs/zfs-media-drive.sh
@@ -64,6 +64,10 @@ print_menu () {
 	echo "Placeholder content"
 }
 
+if [ -z "$1" ]; then
+	exit 1
+fi
+
 if ! [ -z "$1" ] && [ "$1" == "init" ]; then
 	while getopts "d:p:k:f:c:v:" opt; do
 		case $opt in