diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c
index d12d97f077..12ef18dc15 100644
--- a/src/conf/node_device_conf.c
+++ b/src/conf/node_device_conf.c
@@ -2309,6 +2309,7 @@ virNodeDevCapsDefFree(virNodeDevCapsDef *caps)
         for (i = 0; i < data->mdev.nattributes; i++)
             virMediatedDeviceAttrFree(data->mdev.attributes[i]);
         g_free(data->mdev.attributes);
+        g_free(data->mdev.parent_addr);
         break;
     case VIR_NODE_DEV_CAP_CSS_DEV:
         for (i = 0; i < data->ccw_dev.nmdev_types; i++)
diff --git a/src/conf/node_device_conf.h b/src/conf/node_device_conf.h
index a60562e4fe..556878b9a8 100644
--- a/src/conf/node_device_conf.h
+++ b/src/conf/node_device_conf.h
@@ -153,6 +153,7 @@ struct _virNodeDevCapMdev {
     char *uuid;
     virMediatedDeviceAttr **attributes;
     size_t nattributes;
+    char *parent_addr;
 };
 
 typedef struct _virNodeDevCapPCIDev virNodeDevCapPCIDev;
diff --git a/src/node_device/node_device_driver.c b/src/node_device/node_device_driver.c
index 6820ec413b..daeaa084bd 100644
--- a/src/node_device/node_device_driver.c
+++ b/src/node_device/node_device_driver.c
@@ -1088,6 +1088,7 @@ nodeDeviceParseMdevctlChildDevice(const char *parent,
 
     mdev = &child->caps->data.mdev;
     mdev->uuid = g_strdup(uuid);
+    mdev->parent_addr = g_strdup(parent);
     mdev->type =
         g_strdup(virJSONValueObjectGetString(props, "mdev_type"));
 
diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
index f99578414d..e7db74b325 100644
--- a/src/node_device/node_device_udev.c
+++ b/src/node_device/node_device_udev.c
@@ -1024,6 +1024,7 @@ udevProcessMediatedDevice(struct udev_device *dev,
     char *linkpath = NULL;
     char *canonicalpath = NULL;
     virNodeDevCapMdev *data = &def->caps->data.mdev;
+    struct udev_device *parent_device = NULL;
 
     /* Because of a kernel uevent race, we might get the 'add' event prior to
      * the sysfs tree being ready, so any attempt to access any sysfs attribute
@@ -1051,6 +1052,21 @@ udevProcessMediatedDevice(struct udev_device *dev,
     if ((iommugrp = virMediatedDeviceGetIOMMUGroupNum(data->uuid)) < 0)
         goto cleanup;
 
+    /* lookup the address of parent device */
+    parent_device = udev_device_get_parent(dev);
+    if (parent_device) {
+        const char *parent_sysfs_path = udev_device_get_syspath(parent_device);
+        if (parent_sysfs_path)
+            data->parent_addr = g_path_get_basename(parent_sysfs_path);
+    }
+
+    if (!data->parent_addr) {
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("Could not get parent of '%s'"),
+                       udev_device_get_syspath(dev));
+        return -1;
+    }
+
     udevGenerateDeviceName(dev, def, NULL);
 
     data->iommuGroupNumber = iommugrp;