diff --git a/libvirt/tests/cfg/virtual_network/iface_update.cfg b/libvirt/tests/cfg/virtual_network/iface_update.cfg
index 33644f42f5..cc06f08bdc 100644
--- a/libvirt/tests/cfg/virtual_network/iface_update.cfg
+++ b/libvirt/tests/cfg/virtual_network/iface_update.cfg
@@ -142,7 +142,7 @@
                     new_iface_rom = "{'enabled':'no'}"
                     del_address = "yes"
                     del_rom = "yes"
-                    expect_err_msg = "Operation not supported: cannot modify network device rom enabled setting"
+                    expect_err_msg = "Operation not supported:.*rom"
                 - del_rom_enable:
                     no s390-virtio
                     iface_rom = "{'enabled':'yes'}"