diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 48522e8..9b6ffd3 100755
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5602,8 +5602,13 @@
 				idle_idx = group_idle_state(sg);
 				group_util = group_norm_util(eenv, sg);
 				sg_busy_energy = (group_util * sg->sge->cap_states[cap_idx].power);
-				sg_idle_energy = ((SCHED_CAPACITY_SCALE-group_util)
-								* sg->sge->idle_states[idle_idx].power);
+
+				if (idle_idx == 0)
+					sg_idle_energy = ((SCHED_CAPACITY_SCALE - group_util)
+							* sg->sge->cap_states[cap_idx].power);
+				else
+					sg_idle_energy = ((SCHED_CAPACITY_SCALE - group_util)
+							* sg->sge->idle_states[idle_idx].power);
 
 				total_energy += sg_busy_energy + sg_idle_energy;