Index: openacs-4/packages/calendar-portlet/www/calendar-admin-portlet.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/calendar-portlet/www/calendar-admin-portlet.tcl,v
diff -u -r1.6 -r1.6.2.1
--- openacs-4/packages/calendar-portlet/www/calendar-admin-portlet.tcl	29 Jun 2018 17:27:18 -0000	1.6
+++ openacs-4/packages/calendar-portlet/www/calendar-admin-portlet.tcl	14 Feb 2024 13:23:13 -0000	1.6.2.1
@@ -22,9 +22,7 @@
     @author Ben Adida (ben@openforce.net)
     @cvs-id $Id$
 } {
-    {period_days:optional}
-} -properties {
-    
+    {period_days:naturalnum,optional}
 }
 
 # get stuff out of the config array