diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index bfec31df8b2123752061d78e536696f27f1cac52..ea88ab3102a869bda9e19b12e11a1a0f0edeec96 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -224,6 +224,8 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (IS_ERR(skb))
 		goto out;
 
+	skb_set_inner_ipproto(skb, IPPROTO_IPIP);
+
 	ip_tunnel_xmit(skb, dev, tiph, tiph->protocol);
 	return NETDEV_TX_OK;