diff --git a/helpdesk/migrations/0017_default_owner_on_delete_null.py b/helpdesk/migrations/0017_default_owner_on_delete_null.py
new file mode 100644
index 00000000..54591f64
--- /dev/null
+++ b/helpdesk/migrations/0017_default_owner_on_delete_null.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2018-01-19 09:48
+
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('helpdesk', '0016_alter_model_options'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='queue',
+            name='default_owner',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='default_owner', to=settings.AUTH_USER_MODEL, verbose_name='Default owner'),
+        ),
+    ]