diff --git a/arch/i386/mach-default/setup.c b/arch/i386/mach-default/setup.c
index 77c8c83..c511705 100644
--- a/arch/i386/mach-default/setup.c
+++ b/arch/i386/mach-default/setup.c
@@ -79,7 +79,7 @@
 {
 }
 
-static struct irqaction irq0  = { timer_interrupt, SA_INTERRUPT, CPU_MASK_NONE, "timer", NULL, NULL};
+static struct irqaction irq0  = { timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE, "timer", NULL, NULL};
 
 /**
  * time_init_hook - do any specific initialisations for the system timer.