diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index a9b76a40319e86b5d545621d274c262bc69c7c70..2c5bc77c0bb004fa5b9bd5e9ca60f60b40ba1b4f 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -645,7 +645,7 @@ void tick_cleanup_dead_cpu(int cpu)
 #endif
 
 #ifdef CONFIG_SYSFS
-struct bus_type clockevents_subsys = {
+static struct bus_type clockevents_subsys = {
 	.name		= "clockevents",
 	.dev_name       = "clockevent",
 };