diff --git a/testmdnsd.c b/testmdnsd.c
index f56435b..a03050c 100644
--- a/testmdnsd.c
+++ b/testmdnsd.c
@@ -328,9 +328,10 @@ main(int argc, char **argv)
 			}
 			notrunning = 0;
 
+			/* service must have FQDN */
 			if (0 <= mdnsd_register_service(
 							ifname, "_http._tcp.local", 80,
-							hostname, txt)) 
+							fullname, txt)) 
 				printf("Registered name.\n");
 		}