diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c
index 128245efe84a..e05e5df803d6 100644
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -354,7 +354,7 @@ static int nf_flow_nat_port_tcp(struct sk_buff *skb, unsigned int thoff,
 		return -1;
 
 	tcph = (void *)(skb_network_header(skb) + thoff);
-	inet_proto_csum_replace2(&tcph->check, skb, port, new_port, true);
+	inet_proto_csum_replace2(&tcph->check, skb, port, new_port, false);
 
 	return 0;
 }
@@ -371,7 +371,7 @@ static int nf_flow_nat_port_udp(struct sk_buff *skb, unsigned int thoff,
 	udph = (void *)(skb_network_header(skb) + thoff);
 	if (udph->check || skb->ip_summed == CHECKSUM_PARTIAL) {
 		inet_proto_csum_replace2(&udph->check, skb, port,
-					 new_port, true);
+					 new_port, false);
 		if (!udph->check)
 			udph->check = CSUM_MANGLED_0;
 	}