diff --git a/src/proxy.c b/src/proxy.c
index 31253f14d..6f71b4b4c 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -1450,6 +1450,9 @@ static int dump_servers_state(struct stream_interface *si, struct chunk *buf)
 				inet_ntop(srv->addr.ss_family, &((struct sockaddr_in6 *)&srv->addr)->sin6_addr,
 					  srv_addr, INET6_ADDRSTRLEN + 1);
 				break;
+			default:
+				memcpy(srv_addr, "-\0", 2);
+				break;
 		}
 		srv_time_since_last_change = now.tv_sec - srv->last_change;
 		bk_f_forced_id = px->options & PR_O_FORCED_ID ? 1 : 0;
diff --git a/src/server.c b/src/server.c
index ebac357fb..277d1405e 100644
--- a/src/server.c
+++ b/src/server.c
@@ -2936,7 +2936,8 @@ static void srv_update_state(struct server *srv, int version, char **params)
 			server_recalc_eweight(srv);
 
 			/* load server IP address */
-			srv->lastaddr = strdup(params[0]);
+			if (strcmp(params[0], "-"))
+				srv->lastaddr = strdup(params[0]);
 
 			if (fqdn && srv->hostname) {
 				if (!strcmp(srv->hostname, fqdn)) {