diff --git a/users/migrations/0005_auto_20180301_1029.py b/users/migrations/0005_auto_20180301_1029.py
new file mode 100644
index 0000000..7b1b802
--- /dev/null
+++ b/users/migrations/0005_auto_20180301_1029.py
@@ -0,0 +1,19 @@
+# Generated by Django 2.0.1 on 2018-03-01 10:29
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0004_auto_20180301_0952'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='userprofile',
+            name='school',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='users.SchoolProfile'),
+        ),
+    ]
diff --git a/users/models.py b/users/models.py
index ec56f4c..28bead3 100644
--- a/users/models.py
+++ b/users/models.py
@@ -58,7 +58,7 @@ def update_permissions_school(sender, instance, **kwargs):
 
 class UserProfile(models.Model):
     """Profil d'un utilisateur"""
-    school = models.ForeignKey(SchoolProfile, on_delete=models.SET_NULL, null=True, blank=True)
+    school = models.ForeignKey(SchoolProfile, on_delete=models.SET_NULL, null=True)
     user = models.OneToOneField(User, on_delete=models.CASCADE)