diff --git a/src/wp-admin/includes/class-wp-automatic-upgrader.php b/src/wp-admin/includes/class-wp-automatic-updater.php
similarity index 100%
rename from src/wp-admin/includes/class-wp-automatic-upgrader.php
rename to src/wp-admin/includes/class-wp-automatic-updater.php
diff --git a/src/wp-admin/includes/class-wp-upgrader.php b/src/wp-admin/includes/class-wp-upgrader.php
index 2276152cc4..485197c49a 100644
--- a/src/wp-admin/includes/class-wp-upgrader.php
+++ b/src/wp-admin/includes/class-wp-upgrader.php
@@ -903,5 +903,5 @@ require_once ABSPATH . 'wp-admin/includes/class-core-upgrader.php';
 /** File_Upload_Upgrader class */
 require_once ABSPATH . 'wp-admin/includes/class-file-upload-upgrader.php';
 
-/** WP_Automatic_Upgrader class */
-require_once ABSPATH . 'wp-admin/includes/class-wp-automatic-upgrader.php';
+/** WP_Automatic_Updater class */
+require_once ABSPATH . 'wp-admin/includes/class-wp-automatic-updater.php';
diff --git a/src/wp-admin/includes/update-core.php b/src/wp-admin/includes/update-core.php
index 5933ba965d..a378d3ce95 100644
--- a/src/wp-admin/includes/update-core.php
+++ b/src/wp-admin/includes/update-core.php
@@ -703,6 +703,8 @@ $_old_files = array(
 'wp-includes/js/tinymce/plugins/wpfullscreen',
 // 4.5
 'wp-includes/theme-compat/comments-popup.php',
+// 4.6
+'wp-admin/includes/class-wp-automatic-upgrader.php', // Wrong file name, see #37628.
 );
 
 /**