diff --git a/trytond/ir/view/email_template_form.xml b/trytond/ir/view/email_template_form.xml
index 733a126ddf..b564292732 100644
--- a/trytond/ir/view/email_template_form.xml
+++ b/trytond/ir/view/email_template_form.xml
@@ -14,12 +14,12 @@ this repository contains the full copyright notices and license terms. -->
     <label id="recipients_secondary_label" string="Secondary Recipients:"/>
     <group id="recipients_secondary" col="-1" colspan="3">
         <field name="recipients_secondary"/>
-        <field name="recipients_secondary_pyson"/>
+        <field name="recipients_secondary_pyson" widget="pyson"/>
     </group>
     <label id="recipients_hidden_label" string="Hidden Recipients:"/>
     <group id="recipients_hidden" col="-1" colspan="3">
         <field name="recipients_hidden"/>
-        <field name="recipients_hidden_pyson"/>
+        <field name="recipients_hidden_pyson" widget="pyson"/>
     </group>
     <label name="subject"/>
     <field name="subject" colspan="3"/>