diff --git a/components/calendar/types/index.d.ts b/components/calendar/types/index.d.ts
index 5b1d0bb99..cd9864c57 100644
--- a/components/calendar/types/index.d.ts
+++ b/components/calendar/types/index.d.ts
@@ -33,6 +33,10 @@ export interface CalendarProps {
      * the direction of the library - internally the library will use rtl for rtl-languages but this can be overridden here for more control
      */
     dir?: CalendarDir
+    /**
+     * the date format
+     */
+    format?: 'YYYY-MM-DD' | 'DD-MM-YYYY'
     /**
      * any valid locale -  if none provided, the internal library will fallback to the user locale (more info here: https://github.com/dhis2/multi-calendar-dates/blob/main/src/hooks/internal/useResolvedLocaleOptions.ts#L15)
      */