diff --git a/addons/hr_expense/views/res_config_settings_views.xml b/addons/hr_expense/views/res_config_settings_views.xml
index 7cd47ddd909..db7fb1bb799 100644
--- a/addons/hr_expense/views/res_config_settings_views.xml
+++ b/addons/hr_expense/views/res_config_settings_views.xml
@@ -17,7 +17,7 @@
                                         <label for="hr_expense_alias_prefix" string="Alias" class="o_light_label"/>
                                         <field name="hr_expense_alias_prefix" class="oe_inline"/>
                                         <span>@</span>
-                                        <field name="alias_domain" class="oe_inline" readonly="1"/>
+                                        <field name="alias_domain" class="oe_inline" readonly="1" force_save="1"/>
                                     </div>
                                 </div>
                                 <div class="content-group" attrs="{'invisible': ['|', ('hr_expense_use_mailgateway', '=',  False), ('alias_domain', 'not in', ['localhost', '', False])]}">