diff --git a/preferences/migrations/0056_radiusoption.py b/preferences/migrations/0056_1_radiusoption.py
similarity index 84%
rename from preferences/migrations/0056_radiusoption.py
rename to preferences/migrations/0056_1_radiusoption.py
index e329f598..8a7cb45c 100644
--- a/preferences/migrations/0056_radiusoption.py
+++ b/preferences/migrations/0056_1_radiusoption.py
@@ -7,19 +7,6 @@ import django.db.models.deletion
 import re2o.mixins
 
 
-def create_radius_policy(apps, schema_editor):
-    OptionalTopologie = apps.get_model('preferences', 'OptionalTopologie')
-    RadiusOption = apps.get_model('preferences', 'RadiusOption')
-
-    option,_ = OptionalTopologie.objects.get_or_create()
-
-    radius_option = RadiusOption()
-    radius_option.radius_general_policy = option.radius_general_policy
-    radius_option.vlan_decision_ok = option.vlan_decision_ok
-
-    radius_option.save()
-
-
 class Migration(migrations.Migration):
 
     dependencies = [
@@ -94,18 +81,4 @@ class Migration(migrations.Migration):
             name='vlan_decision_ok',
             field=models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='vlan_ok_option', to='machines.Vlan'),
         ),
-
-        migrations.RunPython(create_radius_policy),
-        migrations.RemoveField(
-            model_name='optionaltopologie',
-            name='radius_general_policy',
-        ),
-        migrations.RemoveField(
-            model_name='optionaltopologie',
-            name='vlan_decision_nok',
-        ),
-        migrations.RemoveField(
-            model_name='optionaltopologie',
-            name='vlan_decision_ok',
-        ),
     ]
diff --git a/preferences/migrations/0056_2_radiusoption.py b/preferences/migrations/0056_2_radiusoption.py
new file mode 100644
index 00000000..1a8ecccd
--- /dev/null
+++ b/preferences/migrations/0056_2_radiusoption.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-10-13 14:29
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import re2o.mixins
+
+
+def create_radius_policy(apps, schema_editor):
+    OptionalTopologie = apps.get_model('preferences', 'OptionalTopologie')
+    RadiusOption = apps.get_model('preferences', 'RadiusOption')
+
+    option,_ = OptionalTopologie.objects.get_or_create()
+
+    radius_option = RadiusOption()
+    radius_option.radius_general_policy = option.radius_general_policy
+    radius_option.vlan_decision_ok = option.vlan_decision_ok
+
+    radius_option.save()
+
+def revert_radius(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0095_auto_20180919_2225'),
+        ('preferences', '0055_generaloption_main_site_url'),
+        ('preferences', '0056_1_radiusoption'),
+    ]
+
+    operations = [
+        migrations.RunPython(create_radius_policy, revert_radius),
+    ]
diff --git a/preferences/migrations/0056_3_radiusoption.py b/preferences/migrations/0056_3_radiusoption.py
new file mode 100644
index 00000000..f3e5f98c
--- /dev/null
+++ b/preferences/migrations/0056_3_radiusoption.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-10-13 14:29
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import re2o.mixins
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('machines', '0095_auto_20180919_2225'),
+        ('preferences', '0055_generaloption_main_site_url'),
+        ('preferences', '0056_2_radiusoption'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='optionaltopologie',
+            name='radius_general_policy',
+        ),
+        migrations.RemoveField(
+            model_name='optionaltopologie',
+            name='vlan_decision_nok',
+        ),
+        migrations.RemoveField(
+            model_name='optionaltopologie',
+            name='vlan_decision_ok',
+        ),
+    ]
diff --git a/preferences/migrations/0057_auto_20181204_0757.py b/preferences/migrations/0056_4_radiusoption.py
similarity index 92%
rename from preferences/migrations/0057_auto_20181204_0757.py
rename to preferences/migrations/0056_4_radiusoption.py
index ba4e1a6f..8d93fff9 100644
--- a/preferences/migrations/0057_auto_20181204_0757.py
+++ b/preferences/migrations/0056_4_radiusoption.py
@@ -8,7 +8,7 @@ from django.db import migrations, models
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('preferences', '0056_radiusoption'),
+        ('preferences', '0056_3_radiusoption'),
     ]
 
     operations = [