diff --git a/addons/hr_expense/wizard/hr_expense_refuse_reason_views.xml b/addons/hr_expense/wizard/hr_expense_refuse_reason_views.xml
index 24ef3b23b79..45e6ba9d116 100644
--- a/addons/hr_expense/wizard/hr_expense_refuse_reason_views.xml
+++ b/addons/hr_expense/wizard/hr_expense_refuse_reason_views.xml
@@ -8,7 +8,7 @@
                 <separator string="Reason to refuse Expense"/>
                 <field name="hr_expense_ids" invisible="1"/>
                 <field name="hr_expense_sheet_id" invisible="1"/>
-                <field name="reason"/>
+                <field name="reason" class="w-100"/>
                 <footer>
                     <button string='Refuse' name="expense_refuse_reason" type="object" class="oe_highlight" data-hotkey="q"/>
                     <button string="Cancel" class="oe_link" special="cancel" data-hotkey="z"/>