diff --git a/sys/netinet/tcp_lro.c b/sys/netinet/tcp_lro.c
index 3718e4d034a5..032d47c2fe7f 100644
--- a/sys/netinet/tcp_lro.c
+++ b/sys/netinet/tcp_lro.c
@@ -333,7 +333,7 @@ tcp_lro_rx_ipv4(struct lro_ctrl *lc, struct mbuf *m, struct ip *ip4,
 		}
 	} else {
 		csum = in_cksum_hdr(ip4);
-		if (__predict_false((csum ^ 0xffff) != 0)) {
+		if (__predict_false((csum) != 0)) {
 			lc->lro_bad_csum++;
 			return (TCP_LRO_CANNOT);
 		}