diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index c0601c2848a159758b472d3dd83d42baed02339a..a649a4ccad43213ae1bb20cd62b48f65791a6ae7 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -27,6 +27,7 @@
 #include <asm/e820.h>
 #include <asm/trampoline.h>
 #include <asm/setup.h>
+#include <asm/smp.h>
 
 #include <mach_apic.h>
 #ifdef CONFIG_X86_32