diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index d247fe4e07aa..ef9f05bd0d18 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2649,6 +2649,7 @@ void wake_up_if_idle(int cpu)
 out:
 	rcu_read_unlock();
 }
+EXPORT_SYMBOL_GPL(wake_up_if_idle);
 
 bool cpus_share_cache(int this_cpu, int that_cpu)
 {