Index: openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl,v
diff -u -r1.16.2.6 -r1.16.2.7
--- openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl	30 Oct 2022 12:13:52 -0000	1.16.2.6
+++ openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl	22 Dec 2022 02:51:37 -0000	1.16.2.7
@@ -68,7 +68,7 @@
   set user_info [xo::request_monitor_user_info $user_id]
   set user_label [dict get $user_info label]
   set user_url   [dict get $user_info url]
-  if {![string is integer $user_id] && $all} {
+  if {![nsf::is integer $user_id] && $all} {
     # it was an IP address
     continue
   }