Index: src/wp-admin/includes/update-core.php
===================================================================
--- src/wp-admin/includes/update-core.php	(revision 40878)
+++ src/wp-admin/includes/update-core.php	(working copy)
@@ -706,6 +706,7 @@
 // 4.6
 'wp-admin/includes/class-wp-automatic-upgrader.php', // Wrong file name, see #37628.
 // 4.8
+'wp-includes/js/tinymce/plugins/wpembed',
 'wp-includes/js/tinymce/plugins/media/moxieplayer.swf',
 'wp-includes/js/tinymce/skins/lightgray/fonts/readme.md',
 'wp-includes/js/tinymce/skins/lightgray/fonts/tinymce-small.json',