diff --git a/libvirt/tests/src/virtual_disks/vhostvdpa_block_backend_type/nodedev_vhostvdpa_disk.py b/libvirt/tests/src/virtual_disks/vhostvdpa_block_backend_type/nodedev_vhostvdpa_disk.py
index 8016649d5c..8543a75eb8 100644
--- a/libvirt/tests/src/virtual_disks/vhostvdpa_block_backend_type/nodedev_vhostvdpa_disk.py
+++ b/libvirt/tests/src/virtual_disks/vhostvdpa_block_backend_type/nodedev_vhostvdpa_disk.py
@@ -19,6 +19,7 @@ def check_nodedev_xml(dev_name):
         test.log.info(f"TEST_STEP: Check xml for node device - {dev_name}.")
         nodexml = nodedev_xml.NodedevXML.new_from_dumpxml(dev_name)
         nodedev_attrs = nodexml.fetch_attrs()
+        nodedev_attrs.update({"cap": {"chardev": nodexml.cap.get_chardev()}})
         idx = nodedev_attrs["path"][-1]
         exp_attrs = {"driver_name": "vhost_vdpa", "cap_type": "vdpa",
                      "cap": {"chardev": f"/dev/vhost-vdpa-{idx}"}}