diff --git a/tests/qemu-iotests/tests/inactive-node-nbd b/tests/qemu-iotests/tests/inactive-node-nbd
index a95b37e796..664157bfd0 100755
--- a/tests/qemu-iotests/tests/inactive-node-nbd
+++ b/tests/qemu-iotests/tests/inactive-node-nbd
@@ -24,6 +24,7 @@ from iotests import QemuIoInteractive
 from iotests import filter_qemu_io, filter_qtest, filter_qmp_testfiles
 
 iotests.script_initialize(supported_fmts=['generic'],
+                          unsupported_fmts=['luks'],
                           supported_protocols=['file'],
                           supported_platforms=['linux'])