diff -Naur nsd-2.3.4/server.c nsd-2.3.4-new/server.c
--- nsd-2.3.4/server.c	2006-04-06 10:26:35.000000000 -0400
+++ nsd-2.3.4-new/server.c	2006-05-03 15:10:54.000000000 -0400
@@ -912,11 +912,15 @@
 	assert(buffer_position(data->query->packet) == data->query->tcplen);
 
 	/* Account... */
+#if defined(INET6)
 	if (data->query->addr.ss_family == AF_INET) {
 		STATUP(data->nsd, ctcp);
 	} else if (data->query->addr.ss_family == AF_INET6) {
 		STATUP(data->nsd, ctcp6);
 	}
+#else
+	STATUP(data->nsd, ctcp);
+#endif
 
 	/* We have a complete query, process it.  */