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-rw-r--r--block/vvfat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/vvfat.c b/block/vvfat.c
index df957e5ff8..d2787b9e76 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -2792,7 +2792,7 @@ static int enable_write_target(BDRVVVFATState *s)
if (bdrv_create(bdrv_qcow, s->qcow_filename, options) < 0)
return -1;
s->qcow = bdrv_new("");
- if (s->qcow == NULL || bdrv_open(s->qcow, s->qcow_filename, 0) < 0)
+ if (s->qcow == NULL || bdrv_open(s->qcow, s->qcow_filename, BDRV_O_RDWR) < 0)
return -1;
#ifndef _WIN32