diff --git a/include/asm-x86/pda.h b/include/asm-x86/pda.h
index 5642634..fb49f80 100644
--- a/include/asm-x86/pda.h
+++ b/include/asm-x86/pda.h
@@ -29,6 +29,7 @@
 	short isidle;
 	struct mm_struct *active_mm;
 	unsigned apic_timer_irqs;
+	unsigned irq0_irqs;
 } ____cacheline_aligned_in_smp;
 
 extern struct x8664_pda *_cpu_pda[];