diff --git a/addons/loyalty/data/mail_template_data.xml b/addons/loyalty/data/mail_template_data.xml
index bba70470e01..d160733981c 100644
--- a/addons/loyalty/data/mail_template_data.xml
+++ b/addons/loyalty/data/mail_template_data.xml
@@ -5,6 +5,7 @@
         <field name="model_id" ref="model_loyalty_card"/>
         <field name="subject">Your Gift Card at {{ object.company_id.name }}</field>
         <field name="partner_to">{{ object._get_mail_partner().id }}</field>
+        <field name="lang">{{ object._get_mail_partner().lang }}</field>
         <field name="description">Sent to customer who purchased a gift card</field>
         <field name="body_html" type="html">
             <div style="background: #ffffff">