diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index fa5b7519765f10c61b8855c6646b79915384062f..b3f859731c60eccfdd77517989cff5ba84f6581a 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -442,6 +442,8 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 		tunnel->i_seqno = ntohl(tpi->seq) + 1;
 	}
 
+	skb_reset_network_header(skb);
+
 	err = IP_ECN_decapsulate(iph, skb);
 	if (unlikely(err)) {
 		if (log_ecn_error)