diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index f94be86c26c..799a0fd011f 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1022,21 +1022,9 @@ ip_forward(struct mbuf *m, int srcrt)
 		m_copydata(m, 0, mcopy->m_len, mtod(mcopy, caddr_t));
 	}
 #ifdef IPSTEALTH
-	if (V_ipstealth == 0) {
-#endif
-	/*
-	 * Decrement the TTL and incrementally change the IP header checksum.
-	 * Don't bother doing this with hw checksum offloading, it's faster
-	 * doing it right here.
-	 */
-	ip->ip_ttl -= IPTTLDEC;
-	if (ip->ip_sum >= (u_int16_t) ~htons(IPTTLDEC << 8))
-		ip->ip_sum -= ~htons(IPTTLDEC << 8);
-	else
-		ip->ip_sum += htons(IPTTLDEC << 8);
-#ifdef IPSTEALTH
-        }
+	if (V_ipstealth == 0)
 #endif
+		ip->ip_ttl -= IPTTLDEC;
 #if defined(IPSEC) || defined(IPSEC_SUPPORT)
 	if (IPSEC_ENABLED(ipv4)) {
 		if ((error = IPSEC_FORWARD(ipv4, m)) != 0) {