diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 3e488ca6050d..4d4b386598aa 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1849,7 +1849,7 @@ static void switched_from_rt(struct rq *rq, struct task_struct *p)
 		resched_task(rq->curr);
 }
 
-void init_sched_rt_class(void)
+void __init init_sched_rt_class(void)
 {
 	unsigned int i;