Index: wp-includes/post.php
===================================================================
--- wp-includes/post.php	(revision 17592)
+++ wp-includes/post.php	(working copy)
@@ -36,6 +36,7 @@
 		'capability_type' => 'page',
 		'map_meta_cap' => true,
 		'hierarchical' => true,
+		'has_archive' => true,
 		'rewrite' => false,
 		'query_var' => false,
 		'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ),