Index: openacs-4/packages/openacs-default-theme/lib/plain-master.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/openacs-default-theme/lib/plain-master.tcl,v
diff -u -r1.6 -r1.7
--- openacs-4/packages/openacs-default-theme/lib/plain-master.tcl	7 Aug 2017 23:48:13 -0000	1.6
+++ openacs-4/packages/openacs-default-theme/lib/plain-master.tcl	19 Jun 2018 13:35:53 -0000	1.7
@@ -65,7 +65,7 @@
     set login_url [ad_get_login_url -return]
 } else {
     # The browser claims to represent a user that we know about
-    set user_name [person::name -person_id $untrusted_user_id]
+    set user_name [acs_user::get_element -user_id $untrusted_user_id -element name]
     set pvt_home_url [ad_pvt_home]
     set pvt_home_name [_ acs-subsite.Your_Account]
     set logout_url [ad_get_logout_url]