1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/netfilter/nf_nat_proto_icmp.c b/net/ipv4/netfilter/nf_nat_proto_icmp.c
index a0e44c953cb..03a02969aa5 100644
--- a/net/ipv4/netfilter/nf_nat_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_nat_proto_icmp.c
@@ -57,7 +57,7 @@ icmp_manip_pkt(struct sk_buff *skb,
                const struct nf_conntrack_tuple *tuple,
                enum nf_nat_manip_type maniptype)
 {
-        struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
+        const struct iphdr *iph = (struct iphdr *)(skb->data + iphdroff);
         struct icmphdr *hdr;
         unsigned int hdroff = iphdroff + iph->ihl*4;