diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index cfe6aa5..067d8de 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -445,7 +445,7 @@
 {
 
 	if (request_irq(dev->irq, hpet_interrupt_handler,
-			IRQF_SHARED|IRQF_NOBALANCING, dev->name, dev))
+			IRQF_DISABLED|IRQF_NOBALANCING, dev->name, dev))
 		return -1;
 
 	disable_irq(dev->irq);