diff --git a/contrib/tcpdump/print-ip-demux.c b/contrib/tcpdump/print-ip-demux.c
--- a/contrib/tcpdump/print-ip-demux.c
+++ b/contrib/tcpdump/print-ip-demux.c
@@ -216,6 +216,12 @@
 		}
 		break;
 
+#ifdef HAVE_NET_IF_PFLOG_H
+	case IPPROTO_PFSYNC:
+		pfsync_ip_print(ndo, bp, length);
+		break;
+#endif
+
 	case IPPROTO_NONE:
 		ND_PRINT("no next header");
 		break;