diff --git a/src/components/Editor/FreeBusy/FreeBusy.vue b/src/components/Editor/FreeBusy/FreeBusy.vue
index d69a80a54a..05be90cd44 100644
--- a/src/components/Editor/FreeBusy/FreeBusy.vue
+++ b/src/components/Editor/FreeBusy/FreeBusy.vue
@@ -462,7 +462,7 @@ export default {
 					this.attendees.map((a) => a.attendeeProperty),
 					startSearch,
 					endSearchDate,
-					this.timeZoneId
+					this.timezoneId
 				)
 
 				const freeSlots = getFirstFreeSlot(