diff --git a/blockdev.c b/blockdev.c
index 09f76b782f83945571ee84ccecd90d4ca33863ca..6f2b7592ce2b1b8dd2ef9e7fcc5306ec95e6e814 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1127,6 +1127,9 @@ void qmp_block_resize(const char *device, int64_t size, Error **errp)
         return;
     }
 
+    /* complete all in-flight operations before resizing the device */
+    bdrv_drain_all();
+
     switch (bdrv_truncate(bs, size)) {
     case 0:
         break;