diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 8739c2a5a54e..dea9fa39e7c0 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -578,7 +578,7 @@ static int init_rootdomain(struct root_domain *rd)
  */
 struct root_domain def_root_domain;
 
-void init_defrootdomain(void)
+void __init init_defrootdomain(void)
 {
 	init_rootdomain(&def_root_domain);