diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 509fb9273771..ec209f4d3312 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -519,7 +519,7 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
 	gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,
 			 protocol, tunnel->parms.o_key, htonl(tunnel->o_seqno));
 
-	skb_set_inner_protocol(skb, proto);
+	skb_set_inner_protocol(skb, protocol);
 
 	return ip6_tnl_xmit(skb, dev, dsfield, fl6, encap_limit, pmtu,
 			    NEXTHDR_GRE);