diff --git a/aio.c b/aio.c
index 687e4bef08b533caf9e9f8423a28f104476fbd9c..70d3cdc5aa3fd1a3b10fc0d8b9717ef734a9fcbb 100644
--- a/aio.c
+++ b/aio.c
@@ -126,6 +126,9 @@ void qemu_aio_wait(void)
 
         walking_handlers = 1;
 
+        FD_ZERO(&rdfds);
+        FD_ZERO(&wrfds);
+
         /* fill fd sets */
         LIST_FOREACH(node, &aio_handlers, node) {
             /* If there aren't pending AIO operations, don't invoke callbacks.