diff --git a/addons/snailmail/wizard/snailmail_letter_missing_required_fields_views.xml b/addons/snailmail/wizard/snailmail_letter_missing_required_fields_views.xml
index aabd79fa391..4f32d5a4840 100644
--- a/addons/snailmail/wizard/snailmail_letter_missing_required_fields_views.xml
+++ b/addons/snailmail/wizard/snailmail_letter_missing_required_fields_views.xml
@@ -11,7 +11,7 @@
                 <group>
                     <label for="partner_id" string="Address"/>
                     <div class="o_address_format">
-                        <field name="partner_id" readonly="1" options="{'no_open': True}"/>
+                        <field name="partner_id" readonly="1" options="{'no_open': True}" force_save="1"/>
                         <field name="street" placeholder="Street..." class="o_address_street"/>
                         <field name="street2" placeholder="Street 2..." class="o_address_street"/>
                         <field name="city" placeholder="City" class="o_address_city"/>