diff --git a/schema/tracker.sql b/schema/tracker.sql
index b445129..1b43b5f 100644
--- a/schema/tracker.sql
+++ b/schema/tracker.sql
@@ -1,8 +1,6 @@
--- Copyright 2016 The Chromium Authors. All Rights Reserved.
---
--- Use of this source code is governed by a BSD-style
--- license that can be found in the LICENSE file or at
--- https://developers.google.com/open-source/licenses/bsd
+-- Copyright 2016 The Chromium Authors
+-- Use of this source code is governed by a BSD-style license that can be
+-- found in the LICENSE file.
 
 
 -- Create issue-realted tables in monorail db.
@@ -171,6 +169,7 @@
   owner_modified INT,
   status_modified INT,
   component_modified INT,
+  migration_modified INT,
 
   derived_owner_id INT UNSIGNED,
   derived_status_id INT,
@@ -432,6 +431,8 @@
   new_value MEDIUMTEXT COLLATE utf8mb4_unicode_ci,
   added_user_id INT UNSIGNED,
   removed_user_id INT UNSIGNED,
+  added_component_id INT,
+  removed_component_id INT,
   custom_field_name VARCHAR(255),
   is_spam BOOLEAN DEFAULT FALSE,