diff --git a/cotisations/models.py b/cotisations/models.py
index 42d76a08..64ef791d 100644
--- a/cotisations/models.py
+++ b/cotisations/models.py
@@ -46,6 +46,7 @@ from django.urls import reverse
 from django.shortcuts import redirect
 from django.contrib import messages
 
+from preferences.models import CotisationsOption
 from machines.models import regen
 from re2o.field_permissions import FieldPermissionModelMixin
 from re2o.mixins import AclMixin, RevMixin
@@ -255,7 +256,10 @@ class Facture(BaseInvoice):
         super(Facture, self).save(*args, **kwargs)
         if not self.__original_valid and self.valid:
             send_mail_invoice(self)
-        if self.is_subscription() and not self.__original_control and self.control:
+        if self.is_subscription() \
+            and not self.__original_control \
+            and self.control \
+            and CotisationsOption.get_cached_value('send_voucher_mail'):
             send_mail_voucher(self)
 
     def __str__(self):
diff --git a/preferences/migrations/0061_cotisationsoption_send_voucher_mail.py b/preferences/migrations/0061_cotisationsoption_send_voucher_mail.py
new file mode 100644
index 00000000..1476ef12
--- /dev/null
+++ b/preferences/migrations/0061_cotisationsoption_send_voucher_mail.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2019-01-20 18:03
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('preferences', '0060_assooption_pres_name'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='cotisationsoption',
+            name='send_voucher_mail',
+            field=models.BooleanField(default=False, verbose_name='Send voucher by email when the invoice is controlled.'),
+        ),
+    ]
diff --git a/preferences/models.py b/preferences/models.py
index 71f1ffa0..9e2988e0 100644
--- a/preferences/models.py
+++ b/preferences/models.py
@@ -729,3 +729,7 @@ class CotisationsOption(AclMixin, PreferencesModel):
         on_delete=models.PROTECT,
         default=default_voucher,
     )
+    send_voucher_mail = models.BooleanField(
+        verbose_name=_("Send voucher by email when the invoice is controlled."),
+        default=False,
+    )
diff --git a/preferences/templates/preferences/display_preferences.html b/preferences/templates/preferences/display_preferences.html
index 92ac0915..f41e8397 100644
--- a/preferences/templates/preferences/display_preferences.html
+++ b/preferences/templates/preferences/display_preferences.html
@@ -361,6 +361,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
             <i class="fa fa-edit"></i>
         </a>
         <table class="table table-striped">
+            <tr>
+                <th>{% trans "Send voucher by email" %}</th>
+                <td>{{ cotisationsoptions.send_voucher_mail | tick }}</th>
+            </tr>
             <tr>
                 <th>{% trans "Invoices' template" %}</th>
                 <td>{{ cotisationsoptions.invoice_template }}</td>