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-rw-r--r--hw/scsi-disk.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 07a6d86946..b627ffee74 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -653,7 +653,7 @@ static int scsi_disk_emulate_mode_sense(SCSIRequest *req, uint8_t *outbuf)
     }
 
     buflen = p - outbuf;
-    outbuf[0] = buflen - 4;
+    outbuf[0] = buflen - 1;
     if (buflen > req->cmd.xfer)
         buflen = req->cmd.xfer;
     return buflen;