diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 81408b93f887116c7abf33f1ca79cf692ba97f62..dedc2bddf7a5bda84bee20adecb2e9f7d3fe615a 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -510,7 +510,8 @@ static int hpet_setup_irq(struct hpet_dev *dev)
 {
 
 	if (request_irq(dev->irq, hpet_interrupt_handler,
-			IRQF_DISABLED|IRQF_NOBALANCING, dev->name, dev))
+			IRQF_TIMER | IRQF_DISABLED | IRQF_NOBALANCING,
+			dev->name, dev))
 		return -1;
 
 	disable_irq(dev->irq);