diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index c37bdb91fe..ae98dbfbe5 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -6070,7 +6070,7 @@ qemuDomainDetachDeviceDiskLive(virQEMUDriverPtr driver,
         if (disk->bus == VIR_DOMAIN_DISK_BUS_VIRTIO)
             ret = qemuDomainDetachPciDiskDevice(driver, vm, dev);
         else if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI)
-            ret =  qemuDomainDetachDiskDevice(driver, vm, dev);
+            ret = qemuDomainDetachDiskDevice(driver, vm, dev);
         else if (dev->data.disk->bus == VIR_DOMAIN_DISK_BUS_USB)
             ret = qemuDomainDetachDiskDevice(driver, vm, dev);
         else
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index cfeae689ff..2d4a822416 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -2091,6 +2091,8 @@ int qemuDomainDetachDiskDevice(virQEMUDriverPtr driver,
 
     virDomainDiskRemove(vm->def, i);
 
+    dev->data.disk->backingChain = detach->backingChain;
+    detach->backingChain = NULL;
     virDomainDiskDefFree(detach);
 
     if (virSecurityManagerRestoreImageLabel(driver->securityManager,