diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index 76600f8d434b31351964a6fcdb9a6f84eaec4de9..610eb4499a1ac62ae471c4cc65691dc53c63d1a8 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -622,6 +622,7 @@ static int nfnetlink_parse_nat_proto(struct nlattr *attr,
 static const struct nla_policy nat_nla_policy[CTA_NAT_MAX+1] = {
 	[CTA_NAT_MINIP]		= { .type = NLA_U32 },
 	[CTA_NAT_MAXIP]		= { .type = NLA_U32 },
+	[CTA_NAT_PROTO]		= { .type = NLA_NESTED },
 };
 
 static int