diff --git a/cotisations/migrations/0031_custom_invoice.py b/cotisations/migrations/0031_custom_invoice.py
index 52921739..fd5ac336 100644
--- a/cotisations/migrations/0031_custom_invoice.py
+++ b/cotisations/migrations/0031_custom_invoice.py
@@ -4,6 +4,7 @@ from __future__ import unicode_literals
 
 from django.db import migrations, models
 import django.db.models.deletion
+from django.contrib.auth.management import create_permissions
 import re2o.field_permissions
 import re2o.mixins
 
@@ -17,6 +18,30 @@ def reattribute_ids(apps, schema_editor):
         f.baseinvoice_ptr = base
         f.save()
 
+
+def update_rights(apps, schema_editor):
+    Permission = apps.get_model('auth', 'Permission')
+
+    # creates needed permissions
+    app = apps.get_app_config('cotisations')
+    app.models_module = True
+    create_permissions(app)
+    app.models_module = False
+
+    former = Permission.objects.get(codename='change_facture_pdf')
+    new_1 = Permission.objects.get(codename='add_custominvoice')
+    new_2 = Permission.objects.get(codename='change_custominvoice')
+    new_3 = Permission.objects.get(codename='view_custominvoice')
+    new_4 = Permission.objects.get(codename='delete_custominvoice')
+    for group in former.group_set.all():
+        group.permissions.remove(former)
+        group.permissions.add(new_1)
+        group.permissions.add(new_2)
+        group.permissions.add(new_3)
+        group.permissions.add(new_4)
+        group.save()
+
+
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -42,7 +67,7 @@ class Migration(migrations.Migration):
                 ('paid', models.BooleanField(verbose_name='Paid')),
             ],
             bases=('cotisations.baseinvoice',),
-            options={'permissions': (('view_custom_invoice', 'Can view a custom invoice'),)},
+            options={'permissions': (('view_custominvoice', 'Can view a custom invoice'),)},
         ),
         migrations.AddField(
             model_name='facture',
@@ -68,5 +93,10 @@ class Migration(migrations.Migration):
             model_name='facture',
             name='baseinvoice_ptr',
             field=models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='cotisations.BaseInvoice'),
-        )
+        ),
+        migrations.RunPython(update_rights),
+        migrations.AlterModelOptions(
+            name='facture',
+            options={'permissions': (('change_facture_control', 'Can change the "controlled" state'), ('view_facture', "Can see an invoice's details"), ('change_all_facture', 'Can edit all the previous invoices')), 'verbose_name': 'Invoice', 'verbose_name_plural': 'Invoices'},
+        ),
     ]
diff --git a/cotisations/models.py b/cotisations/models.py
index c4515cc7..7ca157eb 100644
--- a/cotisations/models.py
+++ b/cotisations/models.py
@@ -153,10 +153,6 @@ class Facture(BaseInvoice):
             # TODO : change facture to invoice
             ('change_facture_control',
              _l("Can change the \"controlled\" state")),
-            # TODO : seems more likely to be call create_facture_pdf
-            # or create_invoice_pdf
-            ('change_facture_pdf',
-             _l("Can create a custom PDF invoice")),
             ('view_facture',
              _l("Can see an invoice's details")),
             ('change_all_facture',
@@ -215,14 +211,6 @@ class Facture(BaseInvoice):
             _("You don't have the right to edit the \"controlled\" state.")
         )
 
-    @staticmethod
-    def can_change_pdf(user_request, *_args, **_kwargs):
-        """ Returns True if the user can change this invoice """
-        return (
-            user_request.has_perm('cotisations.change_facture_pdf'),
-            _("You don't have the right to edit an invoice.")
-        )
-
     @staticmethod
     def can_create(user_request, *_args, **_kwargs):
         """Check if a user can create an invoice.
@@ -271,7 +259,7 @@ def facture_post_delete(**kwargs):
 class CustomInvoice(BaseInvoice):
     class Meta:
         permissions = (
-            ('view_custom_invoice', _l("Can view a custom invoice")),
+            ('view_custominvoice', _l("Can view a custom invoice")),
         )
     recipient = models.CharField(
         max_length=255,