diff --git a/sys/dev/nge/if_nge.c b/sys/dev/nge/if_nge.c
index bbab6e94c79d..f5fb23e0ae22 100644
--- a/sys/dev/nge/if_nge.c
+++ b/sys/dev/nge/if_nge.c
@@ -1293,6 +1293,14 @@ static void nge_rxeof(sc)
 				m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED;
 			if (!(extsts & NGE_RXEXTSTS_IPCSUMERR))
 				m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
+			if ((extsts & NGE_RXEXTSTS_TCPPKT &&
+			    !(extsts & NGE_RXEXTSTS_TCPCSUMERR)) ||
+			    (extsts & NGE_RXEXTSTS_UDPPKT &&
+			    !(extsts & NGE_RXEXTSTS_UDPCSUMERR))) {
+				m->m_pkthdr.csum_flags |=
+				    CSUM_DATA_VALID|CSUM_PSEUDO_HDR;
+				m->m_pkthdr.csum_data = 0;
+			}
                 }
 
 #if NVLAN > 0