diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 390ce30..82fd884 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -562,7 +562,7 @@
 	curr->vruntime += delta_exec_weighted;
 	update_min_vruntime(cfs_rq);
 
-#ifdef CONFIG_FAIR_GROUP_SCHED
+#if defined CONFIG_SMP && defined CONFIG_FAIR_GROUP_SCHED
 	cfs_rq->load_unacc_exec_time += delta_exec;
 	if (cfs_rq->load_unacc_exec_time > sysctl_sched_shares_window) {
 		update_cfs_load(cfs_rq, 0);