diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index 6cce86ba383c..969b2510b0b8 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -509,6 +509,7 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt,
 			 struct netlink_ext_ack *extack)
 {
 	struct fq_codel_sched_data *q = qdisc_priv(sch);
+	u32 mtu;
 	int i;
 	int err;
 
@@ -516,13 +517,14 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt,
 	q->flows_cnt = 1024;
 	q->memory_limit = 32 << 20; /* 32 MBytes */
 	q->drop_batch_size = 64;
-	q->quantum = psched_mtu(qdisc_dev(sch));
+	mtu = clamp_t(u32, psched_mtu(qdisc_dev(sch)), 256, FQ_CODEL_QUANTUM_MAX);
+	q->quantum = mtu;
 	INIT_LIST_HEAD(&q->new_flows);
 	INIT_LIST_HEAD(&q->old_flows);
 	codel_params_init(&q->cparams);
 	codel_stats_init(&q->cstats);
 	q->cparams.ecn = true;
-	q->cparams.mtu = psched_mtu(qdisc_dev(sch));
+	q->cparams.mtu = mtu;
 
 	if (opt) {
 		err = fq_codel_change(sch, opt, extack);