diff --git a/addons/hr_holidays/tests/test_leave_requests.py b/addons/hr_holidays/tests/test_leave_requests.py
index c70efec9464..ea24312ccfe 100644
--- a/addons/hr_holidays/tests/test_leave_requests.py
+++ b/addons/hr_holidays/tests/test_leave_requests.py
@@ -571,7 +571,7 @@ class TestLeaveRequests(TestHrHolidaysCommon):
         req1_form.request_date_from = fields.Date.to_date('2021-12-06')
         req1_form.request_date_to = fields.Date.to_date('2021-12-08')
 
-        self.assertEqual(req1_form.number_of_days, 3)
+        self.assertEqual(req1_form.number_of_days_display, 3)
         req1_form.save().action_approve()
 
         req2_form = Form(self.env['hr.leave'].sudo())
@@ -580,7 +580,7 @@ class TestLeaveRequests(TestHrHolidaysCommon):
         req2_form.request_date_from = fields.Date.to_date('2021-12-06')
         req2_form.request_date_to = fields.Date.to_date('2021-12-08')
 
-        self.assertEqual(req2_form.number_of_days, 3)
+        self.assertEqual(req2_form.number_of_days_display, 3)
 
     def test_leave_with_public_holiday_other_company(self):
         other_company = self.env['res.company'].create({
diff --git a/addons/hr_holidays/views/hr_leave_views.xml b/addons/hr_holidays/views/hr_leave_views.xml
index c75dfa6d284..05b00887376 100644
--- a/addons/hr_holidays/views/hr_leave_views.xml
+++ b/addons/hr_holidays/views/hr_leave_views.xml
@@ -335,17 +335,11 @@
                                 </div>
                             </div>
 
-                            <!-- When the user is leave manager, he should always see `number_of_days` to allow
-                            him to edit the value. `number_of_hours_display` is only an informative field -->
-                            <label for="number_of_days" string="Duration" attrs="{'invisible': [('request_unit_half', '=', True), ('leave_type_request_unit', '!=', 'hour')]}"/>
+                            <label for="number_of_days_display" string="Duration" attrs="{'invisible': [('request_unit_half', '=', True), ('leave_type_request_unit', '!=', 'hour')]}"/>
                             <div name="duration_display">
                                 <div class="o_row">
-                                    <div groups="!hr_holidays.group_hr_holidays_manager" attrs="{'invisible': ['|', ('request_unit_half', '=', True), ('request_unit_hours', '=', True)]}" class="o_row">
-                                        <field name="number_of_days_display" nolabel="1" readonly="1" class="oe_inline"/>
-                                        <span>Days</span>
-                                    </div>
-                                    <div groups="hr_holidays.group_hr_holidays_manager" class="o_row" attrs="{'invisible': ['|', ('request_unit_half', '=', True), ('request_unit_hours', '=', True)]}">
-                                        <field name="number_of_days" nolabel="1" class="oe_inline"/>
+                                    <div attrs="{'invisible': ['|', ('request_unit_half', '=', True), ('request_unit_hours', '=', True)]}" class="o_row">
+                                        <field name="number_of_days_display" nolabel="1" class="oe_inline"/>
                                         <span>Days</span>
                                     </div>
                                     <div attrs="{'invisible': [('leave_type_request_unit', '!=', 'hour')]}" class="o_row">