Index: openacs-4/packages/xowiki/tcl/xowiki-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-procs.tcl,v
diff -u -N -r1.485.2.27 -r1.485.2.28
--- openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	13 May 2016 08:00:26 -0000	1.485.2.27
+++ openacs-4/packages/xowiki/tcl/xowiki-procs.tcl	5 Jun 2016 12:45:53 -0000	1.485.2.28
@@ -1871,7 +1871,7 @@
         set html ""
       } elseif {[string match "*for parameter*" $errorMsg]} {
         set html ""
-        ad_return_complaint 1 $errorMsg
+        ad_return_complaint 1 [ns_quotehtml $errorMsg]
       } else {
         ad_log error "render_includelet $includeletClass led to: $errorMsg ($errorCode)"
         set page_name [$includelet name]