diff --git a/kernel/sched/ext/ext.c b/kernel/sched/ext/ext.c
index 901fb0f8b976..5f242ab69cf4 100644
--- a/kernel/sched/ext/ext.c
+++ b/kernel/sched/ext/ext.c
@@ -4933,7 +4933,8 @@ void scx_group_set_idle(struct task_group *tg, bool idle)
 	percpu_down_read(&scx_cgroup_ops_rwsem);
 	sch = scx_tg_knob_sched(tg);
 
-	if (scx_cgroup_enabled && sch && SCX_HAS_OP(sch, cgroup_set_idle))
+	if (scx_cgroup_enabled && sch && SCX_HAS_OP(sch, cgroup_set_idle) &&
+	    tg->scx.idle != idle)
 		SCX_CALL_OP(sch, cgroup_set_idle, NULL, tg_cgrp(tg), idle);
 
 	/* Update the task group's idle state */