Index: wp-includes/general-template.php
===================================================================
--- wp-includes/general-template.php	(revision 18649)
+++ wp-includes/general-template.php	(working copy)
@@ -661,7 +661,7 @@
 	if ( ! is_post_type_archive() )
 		return;
 
-	$post_type_obj = get_queried_object();
+	$post_type_obj = get_post_type_object( get_post_type() );
 	$title = apply_filters('post_type_archive_title', $post_type_obj->labels->name );
 
 	if ( $display )