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 -r1.239.2.13 -r1.239.2.14
--- openacs-4/packages/xowiki/tcl/includelet-procs.tcl	24 Jun 2019 11:41:40 -0000	1.239.2.13
+++ openacs-4/packages/xowiki/tcl/includelet-procs.tcl	4 Jul 2019 17:51:39 -0000	1.239.2.14
@@ -3789,7 +3789,7 @@
     ::xo::Page requireJS "/resources/xowiki/highcharts/js/highcharts.js"
     ::xo::Page requireJS "/resources/xowiki/highcharts/js/themes/gray.js"
     set result "<div id='[:id]' style='width: 100%; height: 400px'></div>\n"
-    set title [:title]
+    set title ${:title}
     if {![info exists :id]} {set :id [::xowiki::Includelet html_id [self]]}
     set id [:id]
     set values [list]