Index: wp-activate.php
===================================================================
--- wp-activate.php	(revision 25008)
+++ wp-activate.php	(working copy)
@@ -21,6 +21,9 @@
 if ( is_object( $wp_object_cache ) )
 	$wp_object_cache->cache_enabled = false;
 
+// Fix for page title
+$wp_query->is_404 = false;
+
 do_action( 'activate_header' );
 
 /**