diff --git a/block-raw.c b/block-raw.c
index e6cc31affebfbaec0f7853595e30e2aed6c3a9b5..9f4a0a1d2ad25b1cc47f6f127fb3e93f04bf28f4 100644
--- a/block-raw.c
+++ b/block-raw.c
@@ -1137,6 +1137,10 @@ void qemu_aio_poll(void)
 {
 }
 
+void qemu_aio_flush(void)
+{
+}
+
 void qemu_aio_wait_start(void)
 {
 }