diff --git a/block-raw.c b/block-raw.c
index e6cc31affe..9f4a0a1d2a 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)
 {
 }