diff --git a/src/plugins/calendar.ts b/src/plugins/calendar.ts
index 4bb29e3c2..ed6e5ce40 100644
--- a/src/plugins/calendar.ts
+++ b/src/plugins/calendar.ts
@@ -96,6 +96,9 @@ export class Calendar {
    * }
    * ```
    */
+  @Cordova({
+    sync: true
+  })
   static getCalendarOptions(): CalendarOptions {
     return {
       firstReminderMinutes: 60,