diff --git a/src/core/Classes.ts b/src/core/Classes.ts
index b2df2fb2..c0ee98e1 100644
--- a/src/core/Classes.ts
+++ b/src/core/Classes.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018, 2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -31,6 +31,7 @@ import {SCSemester, SCSemesterMeta} from './things/Semester';
 import {SCSetting, SCSettingMeta} from './things/Setting';
 import {SCSportCourse, SCSportCourseMeta} from './things/SportCourse';
 import {SCTicket, SCTicketMeta} from './things/Ticket';
+import {SCToDo, SCToDoMeta} from './things/ToDo';
 import {SCTour, SCTourMeta} from './things/Tour';
 import {SCVideo, SCVideoMeta} from './things/Video';
 
@@ -59,6 +60,7 @@ export const SCClasses = {
   setting: SCSettingMeta,
   'sport course': SCSportCourseMeta,
   ticket: SCTicketMeta,
+  todo: SCToDoMeta,
   tour: SCTourMeta,
   video: SCVideoMeta,
 };
@@ -82,6 +84,7 @@ export type SCThingsWithoutDiff =
   | SCSetting
   | SCSportCourse
   | SCTicket
+  | SCToDo
   | SCTour
   | SCVideo;
 
diff --git a/src/core/things/ToDo.ts b/src/core/things/ToDo.ts
index fd2d6a3f..874adb57 100644
--- a/src/core/things/ToDo.ts
+++ b/src/core/things/ToDo.ts
@@ -13,7 +13,7 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 import {SCThingWithCategoriesSpecificValues, SCThingWithCategoriesWithoutReferences} from '../base/ThingWithCategories';
-import {SCThingType} from '../Thing';
+import {SCThingMeta, SCThingType} from '../Thing';
 import {SCISO8601Date} from '../types/Time';
 
 /**
@@ -58,3 +58,9 @@ export enum SCToDoPriority {
   NORMAL = 2,
   HIGH = 5,
 }
+
+/**
+ * "To do" meta data
+ */
+export class SCToDoMeta extends SCThingMeta {
+}