diff --git a/block-qcow.c b/block-qcow.c
index 91c53b1..1fabc49 100644
--- a/block-qcow.c
+++ b/block-qcow.c
@@ -887,23 +887,20 @@
 }
 
 BlockDriver bdrv_qcow = {
-    "qcow",
-    sizeof(BDRVQcowState),
-    qcow_probe,
-    qcow_open,
-    NULL,
-    NULL,
-    qcow_close,
-    qcow_create,
-    qcow_flush,
-    qcow_is_allocated,
-    qcow_set_key,
-    qcow_make_empty,
-
-    .bdrv_aio_read = qcow_aio_read,
-    .bdrv_aio_write = qcow_aio_write,
-    .bdrv_aio_cancel = qcow_aio_cancel,
-    .aiocb_size = sizeof(QCowAIOCB),
+    .format_name	= "qcow",
+    .instance_size	= sizeof(BDRVQcowState),
+    .bdrv_probe		= qcow_probe,
+    .bdrv_open		= qcow_open,
+    .bdrv_close		= qcow_close,
+    .bdrv_create	= qcow_create,
+    .bdrv_flush		= qcow_flush,
+    .bdrv_is_allocated	= qcow_is_allocated,
+    .bdrv_set_key	= qcow_set_key,
+    .bdrv_make_empty	= qcow_make_empty,
+    .bdrv_aio_read	= qcow_aio_read,
+    .bdrv_aio_write	= qcow_aio_write,
+    .bdrv_aio_cancel	= qcow_aio_cancel,
+    .aiocb_size		= sizeof(QCowAIOCB),
     .bdrv_write_compressed = qcow_write_compressed,
-    .bdrv_get_info = qcow_get_info,
+    .bdrv_get_info	= qcow_get_info,
 };