diff --git a/include/haproxy/xprt_quic-t.h b/include/haproxy/xprt_quic-t.h
index 7e843ab09..df4f5b4eb 100644
--- a/include/haproxy/xprt_quic-t.h
+++ b/include/haproxy/xprt_quic-t.h
@@ -551,8 +551,6 @@ struct quic_enc_level {
 		struct {
 			uint64_t offset;
 			struct eb_root frms;
-			/* <frms> must be protected from concurrent accesses */
-			__decl_thread(HA_RWLOCK_T frms_rwlock);
 		} crypto;
 	} rx;
 	struct {
diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index af694cdf7..ddd60815e 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -2649,7 +2649,6 @@ static inline int qc_treat_rx_crypto_frms(struct quic_enc_level *el,
 	struct eb64_node *node;
 
 	TRACE_ENTER(QUIC_EV_CONN_RXCDATA, ctx->conn);
-	HA_RWLOCK_WRLOCK(QUIC_LOCK, &el->rx.crypto.frms_rwlock);
 	node = eb64_first(&el->rx.crypto.frms);
 	while (node) {
 		struct quic_rx_crypto_frm *cf;
@@ -2666,12 +2665,10 @@ static inline int qc_treat_rx_crypto_frms(struct quic_enc_level *el,
 		eb64_delete(&cf->offset_node);
 		pool_free(pool_head_quic_rx_crypto_frm, cf);
 	}
-	HA_RWLOCK_WRUNLOCK(QUIC_LOCK, &el->rx.crypto.frms_rwlock);
 	TRACE_LEAVE(QUIC_EV_CONN_RXCDATA, ctx->conn);
 	return 1;
 
  err:
-	HA_RWLOCK_WRUNLOCK(QUIC_LOCK, &el->rx.crypto.frms_rwlock);
 	TRACE_DEVEL("leaving in error", QUIC_EV_CONN_RXCDATA, ctx->conn);
 	return 0;
 }
@@ -2878,7 +2875,6 @@ static int quic_conn_enc_level_init(struct quic_conn *qc,
 	MT_LIST_INIT(&qel->rx.pqpkts);
 	qel->rx.crypto.offset = 0;
 	qel->rx.crypto.frms = EB_ROOT_UNIQUE;
-	HA_RWLOCK_INIT(&qel->rx.crypto.frms_rwlock);
 
 	/* Allocate only one buffer. */
 	qel->tx.crypto.bufs = malloc(sizeof *qel->tx.crypto.bufs);