diff --git a/src/mixins/datepicker-calendar-mixin/datepicker-calendar-mixin.ts b/src/mixins/datepicker-calendar-mixin/datepicker-calendar-mixin.ts
index eeff8460..f7dc5e1b 100644
--- a/src/mixins/datepicker-calendar-mixin/datepicker-calendar-mixin.ts
+++ b/src/mixins/datepicker-calendar-mixin/datepicker-calendar-mixin.ts
@@ -34,7 +34,6 @@ export default class DatepickerCalendarMixin extends LitElement {
 
   @property({
     attribute: "disabled-dates",
-    type: Array,
     reflect: true,
   })
   set disabledDates(disabledDates: Date[] | string) {