Index: openacs-4/packages/xowiki/tcl/includelet-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/includelet-procs.tcl,v
diff -u -r1.239.2.2 -r1.239.2.3
--- openacs-4/packages/xowiki/tcl/includelet-procs.tcl	21 Feb 2019 14:56:53 -0000	1.239.2.2
+++ openacs-4/packages/xowiki/tcl/includelet-procs.tcl	26 Feb 2019 18:06:43 -0000	1.239.2.3
@@ -4772,6 +4772,7 @@
           -skin
           -login_messages_p
           -logout_messages_p
+          -avatar_p
           -timewindow
         }}
       }
@@ -4789,7 +4790,7 @@
     # We don't want to override Chat class default with our own and
     # therefore we build the command dynamically depending if these
     # variables are there or not.
-    set optional_vars [list login_messages_p logout_messages_p timewindow skin]
+    set optional_vars [list login_messages_p logout_messages_p timewindow skin avatar_p]
     foreach var $optional_vars {
       if {[info exists $var]} {
         lappend chat_cmd -${var} [set $var]