diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
index 0a4fc62..c998e1a 100644
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -978,7 +978,7 @@
 	dev->netdev_ops = &cfhsi_ops;
 	dev->type = ARPHRD_CAIF;
 	dev->flags = IFF_POINTOPOINT | IFF_NOARP;
-	dev->mtu = CFHSI_MAX_PAYLOAD_SZ;
+	dev->mtu = CFHSI_MAX_CAIF_FRAME_SZ;
 	dev->tx_queue_len = 0;
 	dev->destructor = free_netdev;
 	skb_queue_head_init(&cfhsi->qhead);