Index: openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl-old
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl-old,v
diff -u -r1.2 -r1.3
--- openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl-old	26 Apr 2018 08:56:39 -0000	1.2
+++ openacs-4/packages/xotcl-request-monitor/www/whos-online.tcl-old	9 May 2018 15:33:34 -0000	1.3
@@ -81,7 +81,7 @@
     -no_data "no registered users online" \
     -elements $template_elements 
 
-set users {}
+set users [list]
 foreach element [throttle users active -full] {
   foreach {user_id pa timestamp hits smooth switches} $element break
   if {[string first . $user_id] > 0} {