diff --git a/machines/migrations/0081_auto_20180521_1413.py b/machines/migrations/0081_auto_20180521_1413.py
new file mode 100644
index 00000000..7948796a
--- /dev/null
+++ b/machines/migrations/0081_auto_20180521_1413.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-05-21 19:13
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0080_auto_20180502_2334'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='extension',
+            name='soa',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='machines.SOA'),
+        ),
+    ]
diff --git a/topologie/migrations/0060_server.py b/topologie/migrations/0060_server.py
new file mode 100644
index 00000000..af067e7b
--- /dev/null
+++ b/topologie/migrations/0060_server.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-05-21 19:13
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0081_auto_20180521_1413'),
+        ('topologie', '0059_auto_20180415_2249'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Server',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+            },
+            bases=('machines.machine',),
+        ),
+    ]