diff --git a/l10n_fr_intrastat_product/data/intrastat_product_reminder.xml b/l10n_fr_intrastat_product/data/intrastat_product_reminder.xml
index 12a7022a5..6b608f46c 100644
--- a/l10n_fr_intrastat_product/data/intrastat_product_reminder.xml
+++ b/l10n_fr_intrastat_product/data/intrastat_product_reminder.xml
@@ -32,6 +32,7 @@
                 ref="intrastat_product.model_intrastat_product_declaration"
             />
             <field name="auto_delete" eval="False" />
+            <field name="lang">{{object.company_id.partner_id.lang}}</field>
             <field name="email_from">{{object.company_id.email}}</field>
             <field name="email_to">{{object.company_id.intrastat_email_list}}</field>
             <field
diff --git a/l10n_fr_intrastat_service/data/mail_template.xml b/l10n_fr_intrastat_service/data/mail_template.xml
index 04212ad93..e0a587c95 100644
--- a/l10n_fr_intrastat_service/data/mail_template.xml
+++ b/l10n_fr_intrastat_service/data/mail_template.xml
@@ -13,6 +13,7 @@
             ref="l10n_fr_intrastat_service.model_l10n_fr_intrastat_service_declaration"
         />
         <field name="auto_delete" eval="False" />
+        <field name="lang">{{object.company_id.partner_id.lang}}</field>
         <field name="email_from">{{object.company_id.email}}</field>
         <field name="email_to">{{object.company_id.intrastat_email_list}}</field>
         <field