diff --git a/block/graph-lock.c b/block/graph-lock.c
index 454c31e691..639526608f 100644
--- a/block/graph-lock.c
+++ b/block/graph-lock.c
@@ -127,7 +127,7 @@ void bdrv_graph_wrlock(void)
          * reader lock.
          */
         qatomic_set(&has_writer, 0);
-        AIO_WAIT_WHILE(qemu_get_aio_context(), reader_count() >= 1);
+        AIO_WAIT_WHILE_UNLOCKED(NULL, reader_count() >= 1);
         qatomic_set(&has_writer, 1);
 
         /*