diff --git a/src/models/caldavToken.ts b/src/models/caldavToken.ts
index 9ecf22325..2f8f1d547 100644
--- a/src/models/caldavToken.ts
+++ b/src/models/caldavToken.ts
@@ -1,13 +1,14 @@
 import AbstractModel from './abstractModel'
 
 export default class CaldavTokenModel extends AbstractModel {
-	id = 0
-	created : undefined | Date = undefined
-
 	constructor(data? : Object) {
 		super(data)
+		
+		/** @type {number} */
+		this.id
 
 		if (this.created) {
+			/** @type {Date} */
 			this.created = new Date(this.created)
 		}
 	}