diff --git a/packages/twenty-server/src/modules/calendar/calendar-event-import-manager/drivers/microsoft-calendar/services/microsoft-calendar-import-events.service.ts b/packages/twenty-server/src/modules/calendar/calendar-event-import-manager/drivers/microsoft-calendar/services/microsoft-calendar-import-events.service.ts
index 7baacced00..449d4ccff8 100644
--- a/packages/twenty-server/src/modules/calendar/calendar-event-import-manager/drivers/microsoft-calendar/services/microsoft-calendar-import-events.service.ts
+++ b/packages/twenty-server/src/modules/calendar/calendar-event-import-manager/drivers/microsoft-calendar/services/microsoft-calendar-import-events.service.ts
@@ -27,6 +27,7 @@ export class MicrosoftCalendarImportEventsService {
       for (const eventExternalId of eventExternalIds) {
         const event = await microsoftClient
           .api(`/me/calendar/events/${eventExternalId}`)
+          .header('Prefer', 'outlook.body-content-type="text"')
           .get();
 
         events.push(event);