Index: openacs-4/packages/dotlrn/www/admin/classes.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/dotlrn/www/admin/classes.tcl,v
diff -u -N -r1.17 -r1.18
--- openacs-4/packages/dotlrn/www/admin/classes.tcl	7 Aug 2017 23:48:09 -0000	1.17
+++ openacs-4/packages/dotlrn/www/admin/classes.tcl	2 Feb 2018 00:23:53 -0000	1.18
@@ -25,7 +25,7 @@
     {department_key ""}
     {orderby:token "department_name,asc"}
     {keyword ""}
-    {page ""}
+    {page:naturalnum ""}
 } -properties {
     title:onevalue
     context_bar:onevalue