diff --git a/src/ev_kqueue.c b/src/ev_kqueue.c
index 081e78a..de7da65 100644
--- a/src/ev_kqueue.c
+++ b/src/ev_kqueue.c
@@ -234,6 +234,7 @@
 
 	p->name = "kqueue";
 	p->pref = 300;
+	p->flags = 0;
 	p->private = NULL;
 
 	p->clo  = NULL;