diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index db3a6f9882..8bcfae3ef1 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -9586,6 +9586,7 @@ ircd:*:72:72:IRC daemon:/nonexistent:/nonexistent
 ircservices:*:73:73:IRC services:/nonexistent:/nonexistent
 simscan:*:74:74:Simscan User:/nonexistent:/sbin/nologin
 ifmail:*:75:66:Ifmail user:/nonexistent:/nonexistent
+virtuoso:*:79:79:Virtuoso Universal Server:/usr/local/virtuoso:/bin/sh
 www:*:80:80:World Wide Web Owner:/nonexistent:/sbin/nologin
 alias:*:81:81:QMail user:/var/qmail/alias:/nonexistent
 qmaild:*:82:81:QMail user:/var/qmail:/nonexistent
@@ -9674,6 +9675,7 @@ network:*:69:
 pgsql:*:70:
 simscan:*:74:
 audit:*:77:
+virtuoso:*:79:
 www:*:80:
 qnofiles:*:81:
 qmail:*:82: