diff --git a/equipment/admin.py b/equipment/admin.py
index 7c4de9c..bcadaa1 100644
--- a/equipment/admin.py
+++ b/equipment/admin.py
@@ -1,7 +1,7 @@
 from django.contrib import admin
 from django import forms
 
-from .models import Equipment, EquipmentDefault, EquipmentRevision, EquipmentOwner, EquipmentPole, EquipmentCategory, EquipmentLost
+from .models import Equipment, EquipmentDefault, EquipmentRevision, EquipmentPole, EquipmentCategory, EquipmentLost
 from .fields import IdField, IdWidget
 
 from shared.admin import admin_site
@@ -69,7 +69,6 @@ class EquipmentAdmin(admin.ModelAdmin):
 
 
 admin_site.register(Equipment, EquipmentAdmin)
-admin_site.register(EquipmentOwner, CharFieldModelAdmin)
 admin_site.register(EquipmentPole, CharFieldModelAdmin)
 admin_site.register(EquipmentCategory, CharFieldModelAdmin)
 admin.site.register(Equipment, EquipmentAdmin)
diff --git a/equipment/migrations/0003_auto_20180807_1828.py b/equipment/migrations/0003_auto_20180807_1828.py
new file mode 100644
index 0000000..3ce898d
--- /dev/null
+++ b/equipment/migrations/0003_auto_20180807_1828.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.11 on 2018-08-07 18:28
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('equipment', '0002_auto_20180807_1658'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='equipment',
+            name='owner',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='auth.Group'),
+        ),
+        migrations.DeleteModel(
+            name='EquipmentOwner',
+        ),
+    ]
diff --git a/equipment/models.py b/equipment/models.py
index 7a9e5e3..9b47dff 100644
--- a/equipment/models.py
+++ b/equipment/models.py
@@ -1,6 +1,7 @@
 from django.db import models
 from django.core.exceptions import ValidationError
 from django.utils.translation import ugettext_lazy as _
+from django.contrib.auth.models import Group
 from event.models import Activity, EventSpecificMixin
 
 from .fields import IdField
@@ -9,20 +10,6 @@ from taggit.managers import TaggableManager
 from datetime import date
 
 
-class EquipmentOwner(models.Model):
-    name = models.CharField(
-                _("nom"),
-                max_length=200,
-                )
-
-    class Meta:
-        verbose_name = _("propriétaire de matériel")
-        verbose_name_plural = _("propriétaires de matériel")
-
-    def __str__(self):
-        return self.name
-
-
 class EquipmentPole(models.Model):
     name = models.CharField(
                 _("nom"),
@@ -64,7 +51,7 @@ class Equipment(EventSpecificMixin, models.Model):
                 through="EquipmentAttribution",
             )
     owner = models.ForeignKey(
-            EquipmentOwner,
+            Group,
             blank=True,
             null=True,
             )