diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c
index 11f0cae086edb..6aa6b1cda1edd 100644
--- a/arch/powerpc/kernel/mce.c
+++ b/arch/powerpc/kernel/mce.c
@@ -40,7 +40,7 @@ static struct irq_work mce_ue_event_irq_work = {
 	.func = machine_check_ue_irq_work,
 };
 
-DECLARE_WORK(mce_ue_event_work, machine_process_ue_event);
+static DECLARE_WORK(mce_ue_event_work, machine_process_ue_event);
 
 static BLOCKING_NOTIFIER_HEAD(mce_notifier_list);