diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index b969ee1..e66edfa 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -229,7 +229,7 @@
 {
 	unsigned long flags, i;
 
-	if (smp_processor_id() != boot_cpu_id)
+	if (smp_processor_id() != 0)
 		return;
 
 	go[MASTER] = 0;