diff --git a/kernel/percpu.c b/kernel/percpu.c
index b51ecd9..3b9e622 100644
--- a/kernel/percpu.c
+++ b/kernel/percpu.c
@@ -12,7 +12,7 @@ static size_t percpu_stride = 0;
 
 extern kern_status_t init_per_cpu_areas(void)
 {
-	unsigned int last_cpu = cpu_get_highest_available();
+	unsigned int last_cpu = cpu_get_highest_available() + 1;
 
 	percpu_stride = (uintptr_t)__percpu_end - (uintptr_t)__percpu_start;
 	if (percpu_stride & 0x7) {