diff --git a/addons/hr_holidays/static/src/js/leave_stats_widget.js b/addons/hr_holidays/static/src/js/leave_stats_widget.js
index 93148c19100..2d7f5d648f2 100644
--- a/addons/hr_holidays/static/src/js/leave_stats_widget.js
+++ b/addons/hr_holidays/static/src/js/leave_stats_widget.js
@@ -103,7 +103,7 @@ odoo.define('hr_holidays.LeaveStatsWidget', function (require) {
                     ['holiday_type', '=', 'employee'],
                     ['date_from', '<=', month_date_to],
                     ['date_to', '>=', month_date_from]],
-                    ['employee_id', 'date_from', 'date_to'],
+                    ['employee_id', 'date_from', 'date_to', 'number_of_days'],
                 ],
             }).then(function (data) {
                 var dateFormat = time.getLangDateFormat();
@@ -112,7 +112,7 @@ odoo.define('hr_holidays.LeaveStatsWidget', function (require) {
                     return _.extend(leave, {
                         date_from: moment(leave.date_from).format(dateFormat),
                         date_to: moment(leave.date_to).format(dateFormat),
-                        number_of_days: moment(leave.date_to).diff(moment(leave.date_from), 'days'),
+                        number_of_days: leave.number_of_days,
                     });
                 });
             });