diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index 23f7b3f63b09..a6d0a93d8174 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -7415,8 +7415,7 @@ static s32 scx_enable(struct sched_ext_ops *ops, struct bpf_link *link)
 	static DEFINE_MUTEX(helper_mutex);
 	struct scx_enable_cmd cmd;
 
-	if (!cpumask_equal(housekeeping_cpumask(HK_TYPE_DOMAIN),
-			   cpu_possible_mask)) {
+	if (housekeeping_enabled(HK_TYPE_DOMAIN_BOOT)) {
 		pr_err("sched_ext: Not compatible with \"isolcpus=\" domain isolation\n");
 		return -EINVAL;
 	}