diff --git a/event.c b/event.c
index 49d2662a..57306698 100644
--- a/event.c
+++ b/event.c
@@ -416,7 +416,7 @@ struct uwsgi_fmon *event_queue_ack_file_monitor(int eq, int id) {
 #include <sys/timerfd.h>
 #endif
 
-#ifndef timerfd_create
+#ifndef TFD_CLOEXEC
 
 // timerfd support