diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index c7a7093..c9abc96 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -942,7 +942,7 @@
 
 	/* Tell the controller what the protocol is */
 	/* And provide the already calculated phcs */
-	if (skb->nh.iph->protocol == IPPROTO_UDP) {
+	if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
 		flags |= TXFCB_UDP;
 		fcb->phcs = skb->h.uh->check;
 	} else