diff --git a/poll.c b/poll.c
index ddae2bf0..c3c9aac5 100644
--- a/poll.c
+++ b/poll.c
@@ -90,7 +90,7 @@ const struct eventop pollops = {
 	poll_del,
 	poll_dispatch,
 	poll_dealloc,
-	0, /* doesn't need_reinit */
+	1, /* need_reinit */
 	EV_FEATURE_FDS|EARLY_CLOSE_IF_HAVE_RDHUP,
 	sizeof(struct pollidx),
 };
diff --git a/select.c b/select.c
index 8ae53cc1..b1db0e44 100644
--- a/select.c
+++ b/select.c
@@ -98,7 +98,7 @@ const struct eventop selectops = {
 	select_del,
 	select_dispatch,
 	select_dealloc,
-	0, /* doesn't need reinit. */
+	1, /* need_reinit. */
 	EV_FEATURE_FDS,
 	0,
 };