Index: openacs-4/packages/chat/www/chat-room-grant.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/chat-room-grant.tcl,v
diff -u -r1.3 -r1.4
--- openacs-4/packages/chat/www/chat-room-grant.tcl	17 Jun 2016 17:36:11 -0000	1.3
+++ openacs-4/packages/chat/www/chat-room-grant.tcl	20 Jun 2016 08:37:04 -0000	1.4
@@ -4,7 +4,7 @@
     @creation-date November 16, 2000
     @cvs-id $Id$
 } {
-    room_id:integer,notnull
+    room_id:naturalnum,notnull
     pretty_name:trim,notnull
     require_privilege:trim,notnull
     assign_privilege:trim,notnull