diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 8c3fef1..ce89ffb 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -570,7 +570,7 @@
 	/* Get the next period (per cpu) */
 	ts->sched_timer.expires = tick_init_jiffy_update();
 	offset = ktime_to_ns(tick_period) >> 1;
-	do_div(offset, NR_CPUS);
+	do_div(offset, num_possible_cpus());
 	offset *= smp_processor_id();
 	ts->sched_timer.expires = ktime_add_ns(ts->sched_timer.expires, offset);