diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 451e24d18050b579627e1dd07f651972141353a1..233006c4e3657f5fdd6bbe6c8768e1369efbdc39 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -86,11 +86,10 @@
 #define CALL_FUNCTION_VECTOR		0xfc
 #define CALL_FUNCTION_SINGLE_VECTOR	0xfb
 #define THERMAL_APIC_VECTOR		0xfa
-
 #define THRESHOLD_APIC_VECTOR		0xf9
 
 #ifdef CONFIG_X86_32
-/* 0xf9 : free */
+/* 0xf8 : free */
 #else
 # define UV_BAU_MESSAGE			0xf8
 #endif