diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 8a8e593ee9..c048cea58c 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13806,7 +13806,7 @@ qemuDomainSnapshotCreateSingleDiskActive(virQEMUDriverPtr driver,
         return -1;
     }
 
-    if (virAsprintf(&device, "drive-%s", disk->info.alias) < 0)
+    if (!(device = qemuAliasFromDisk(disk)))
         goto cleanup;
 
     if (!(newDiskSrc = virStorageSourceCopy(snap->src, false)))