Index: openacs-4/packages/categories/www/cadmin/category-link-delete.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/categories/www/cadmin/category-link-delete.tcl,v
diff -u -N -r1.6.4.1 -r1.6.4.2
--- openacs-4/packages/categories/www/cadmin/category-link-delete.tcl	29 Jul 2014 11:14:17 -0000	1.6.4.1
+++ openacs-4/packages/categories/www/cadmin/category-link-delete.tcl	29 Jul 2014 11:37:29 -0000	1.6.4.2
@@ -5,7 +5,7 @@
     @author Timo Hentschel (timo@timohentschel.de)
     @cvs-id $Id:
 } {
-    link_id:integer,multiple
+    link_id:naturalnum,multiple
     category_id:integer
     tree_id:integer
     {locale ""}