diff --git a/sbin/dhclient/packet.c b/sbin/dhclient/packet.c
index 2328d577386d..21726aaaeb84 100644
--- a/sbin/dhclient/packet.c
+++ b/sbin/dhclient/packet.c
@@ -183,7 +183,7 @@ decode_udp_ip_header(unsigned char *buf, int bufix, struct sockaddr_in *from,
 	ip_packets_seen++;
 	if (wrapsum(checksum(buf + bufix, ip_len, 0)) != 0) {
 		ip_packets_bad_checksum++;
-		if (ip_packets_seen > 4 &&
+		if (ip_packets_seen > 4 && ip_packets_bad_checksum != 0 &&
 		    (ip_packets_seen / ip_packets_bad_checksum) < 2) {
 			note("%d bad IP checksums seen in %d packets",
 			    ip_packets_bad_checksum, ip_packets_seen);
@@ -235,7 +235,7 @@ decode_udp_ip_header(unsigned char *buf, int bufix, struct sockaddr_in *from,
 	udp_packets_seen++;
 	if (usum && usum != sum) {
 		udp_packets_bad_checksum++;
-		if (udp_packets_seen > 4 &&
+		if (udp_packets_seen > 4 && udp_packets_bad_checksum != 0 &&
 		    (udp_packets_seen / udp_packets_bad_checksum) < 2) {
 			note("%d bad udp checksums in %d packets",
 			    udp_packets_bad_checksum, udp_packets_seen);