diff --git a/fs/timerfd.c b/fs/timerfd.c
index 10c80b59ec4bb7e542b8864f369ec10da7dc34f5..5400524e9cb1d2b2e40bf810a1282277e54eec98 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -20,6 +20,7 @@
 #include <linux/hrtimer.h>
 #include <linux/anon_inodes.h>
 #include <linux/timerfd.h>
+#include <linux/syscalls.h>
 
 struct timerfd_ctx {
 	struct hrtimer tmr;