diff --git a/block/snapshot.c b/block/snapshot.c
index f9903bc..3218a54 100644
--- a/block/snapshot.c
+++ b/block/snapshot.c
@@ -218,7 +218,9 @@
         qobject_unref(file_options);
         qdict_put_str(options, "file", bdrv_get_node_name(file));
 
-        drv->bdrv_close(bs);
+        if (drv->bdrv_close) {
+            drv->bdrv_close(bs);
+        }
         bdrv_unref_child(bs, bs->file);
         bs->file = NULL;