diff --git a/build/h3text.2017 b/build/h3text.2018
similarity index 89%
rename from build/h3text.2017
rename to build/h3text.2018
index 79698377..b0be82d3 100644
--- a/build/h3text.2017
+++ b/build/h3text.2018
@@ -24,9 +24,16 @@ NET :  10.0.0.0 : ARPANET :
 NET : 172.0.0.0 : B-172 :
 NET : 192.0.0.0 : C-192 :
 
-HOST : CHAOS 177001 : BRIDGE : UNIX : UNIX : :
+;; Next entry is for chaosnet bridge. By default, the address is
+;; 177001, for chaosnet unconnected to the global chaosnet.  If you
+;; join the global chaosnet, be sure to update the chaosnet address
+;; below to match your chaosnet bridge's address.  Note also that the
+;; bridge will serve as a time server.
+HOST : CHAOS 177001 : BRIDGE, LOCAL-TIME-SERVER : UNIX : UNIX : :
+
 ;;; Generated by build script.
 HOST : CHAOS 177002, %IP% : %HOSTNAME%, DB : PDP-10 : ITS : :
+
 ;; Hactrn public ITS.
 HOST : 205.166.94.7 : HACTRN.ORG, HX : PDP-10 : ITS : :