Index: openacs-4/packages/chat/www/search-2.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/chat/www/search-2.tcl,v
diff -u -r1.6 -r1.7
--- openacs-4/packages/chat/www/search-2.tcl	17 Jun 2016 17:36:11 -0000	1.6
+++ openacs-4/packages/chat/www/search-2.tcl	20 Jun 2016 08:37:04 -0000	1.7
@@ -6,9 +6,9 @@
     keyword:optional
     target
     type:notnull
-    room_id:notnull
+    room_id:naturalnum,notnull
     {passthrough ""}
-    {limit_users_in_group_id ""}
+    {limit_users_in_group_id:naturalnum ""}
 } -properties {
     group_name:onevalue
     search_type:onevalue