diff -r 672e3c4bbd0c -r 9864fe2067cd src/notes/migrations/0001_initial.py
--- a/src/notes/migrations/0001_initial.py	Mon Jul 17 14:13:32 2017 +0200
+++ b/src/notes/migrations/0001_initial.py	Tue Jul 18 17:08:27 2017 +0200
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Generated by Django 1.11.2 on 2017-06-21 10:50
+# Generated by Django 1.11.2 on 2017-07-07 09:59
 from __future__ import unicode_literals
 
 import colorful.fields
@@ -66,7 +66,8 @@
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('description', models.TextField(blank=True, null=True)),
-                ('group', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='auth.Group')),
+                ('group', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, related_name='profile', to='auth.Group')),
+                ('owner', models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL)),
             ],
             options={
                 'verbose_name': 'GroupProfile',