diff --git a/tap.c b/tap.c
index 88eed88..73cb352 100644
--- a/tap.c
+++ b/tap.c
@@ -972,6 +972,7 @@ restart:
 		switch (ntohs(eh->h_proto)) {
 		case ETH_P_ARP:
 		case ETH_P_IP:
+		case htons_constant(ETH_P_IP):
 			packet_add(pool_tap4, len, pkt_buf + n);
 			break;
 		case ETH_P_IPV6: