diff --git a/scripts/knotctl b/scripts/knotctl
index cc66dca..5a99bc1 100755
--- a/scripts/knotctl
+++ b/scripts/knotctl
@@ -271,7 +271,7 @@ def main() -> int:
     listcmd.add_argument("-d", "--data")
     listcmd.add_argument("-n", "--name")
     listcmd.add_argument("-r", "--rtype")
-    listcmd.add_argument("-z", "--zone")
+    listcmd.add_argument("-z", "--zone", required=True)
 
     updatecmd = subparsers.add_parser("update")
     updatecmd.add_argument(