diff --git a/dev/Model/Message.js b/dev/Model/Message.js
index 25d815b69..5967e1df7 100644
--- a/dev/Model/Message.js
+++ b/dev/Model/Message.js
@@ -103,6 +103,7 @@ export class MessageModel extends AbstractModel {
 			plain: '',
 			html: '',
 			dateTimestamp: 0,
+			dateTimestampSource: 0,
 
 			deleted: false,