Index: wp-includes/ms-default-filters.php
===================================================================
--- wp-includes/ms-default-filters.php	(revision 16400)
+++ wp-includes/ms-default-filters.php	(working copy)
@@ -35,6 +35,7 @@
 // Administration
 add_filter( 'term_id_filter', 'global_terms', 10, 2 );
 add_action( 'publish_post', 'update_posts_count' );
+add_action( 'delete_post', 'update_posts_count' );
 add_action( 'delete_post', 'wpmu_update_blogs_date' );
 add_action( 'private_to_published', 'wpmu_update_blogs_date' );
 add_action( 'publish_phone', 'wpmu_update_blogs_date' );