1 files changed, 1 insertions, 1 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 669a2797fd..5c6b761d81 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -324,7 +324,7 @@ struct BlockDriver {
      * Drain and stop any internal sources of requests in the driver, and
      * remain so until next I/O callback (e.g. bdrv_co_writev) is called.
      */
-    void (*bdrv_drain)(BlockDriverState *bs);
+    void coroutine_fn (*bdrv_co_drain)(BlockDriverState *bs);
 
     void (*bdrv_add_child)(BlockDriverState *parent, BlockDriverState *child,
                            Error **errp);