Index: openacs-4/packages/photo-album/www/photo-iconic.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/photo-album/www/photo-iconic.tcl,v
diff -u -N -r1.5 -r1.6
--- openacs-4/packages/photo-album/www/photo-iconic.tcl	14 Oct 2013 17:56:30 -0000	1.5
+++ openacs-4/packages/photo-album/www/photo-iconic.tcl	7 Aug 2014 07:59:51 -0000	1.6
@@ -1,7 +1,7 @@
 ad_page_contract { 
     Make a given photo the cover photo for the album.
 } { 
-    photo_id:integer,notnull
+    photo_id:naturalnum,notnull
 } -validate {
     valid_photo -requires {photo_id:integer} {
 	if {[pa_is_photo_p $photo_id] != "t" } {