diff --git a/wcsinst/wcsinst/admin.py b/wcsinst/wcsinst/admin.py
index 50ea427..9602e8e 100644
--- a/wcsinst/wcsinst/admin.py
+++ b/wcsinst/wcsinst/admin.py
@@ -18,7 +18,7 @@ class WcsInstanceAdmin(admin.ModelAdmin):
     fieldsets = (
         (None, {'fields': ('title', 'domain'),}),
         ('site-options.cfg',
-            {'fields': ('postgresql', ('saml2_use_role', 'saml2_role_prefix',), 'backoffice_feed_url' )}
+            {'fields': ('postgresql', 'backoffice_feed_url' )}
         ),
         ('site-options.cfg au-quotidien',
             {'fields': ('drupal', 'ezldap', 'strongbox', 'clicrdv', 'domino' )}
diff --git a/wcsinst/wcsinst/migrations/0004_auto__del_field_wcsinstance_saml2_use_role__del_field_wcsinstance_saml.py b/wcsinst/wcsinst/migrations/0004_auto__del_field_wcsinstance_saml2_use_role__del_field_wcsinstance_saml.py
new file mode 100644
index 0000000..d7d8173
--- /dev/null
+++ b/wcsinst/wcsinst/migrations/0004_auto__del_field_wcsinstance_saml2_use_role__del_field_wcsinstance_saml.py
@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Deleting field 'WcsInstance.saml2_use_role'
+        db.delete_column(u'wcsinst_wcsinstance', 'saml2_use_role')
+
+        # Deleting field 'WcsInstance.saml2_role_prefix'
+        db.delete_column(u'wcsinst_wcsinstance', 'saml2_role_prefix')
+
+
+    def backwards(self, orm):
+        # Adding field 'WcsInstance.saml2_use_role'
+        db.add_column(u'wcsinst_wcsinstance', 'saml2_use_role',
+                      self.gf('django.db.models.fields.BooleanField')(default=False),
+                      keep_default=False)
+
+        # Adding field 'WcsInstance.saml2_role_prefix'
+        db.add_column(u'wcsinst_wcsinstance', 'saml2_role_prefix',
+                      self.gf('django.db.models.fields.CharField')(default='', max_length=128, blank=True),
+                      keep_default=False)
+
+
+    models = {
+        u'wcsinst.apisecret': {
+            'Meta': {'object_name': 'ApiSecret'},
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'key': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'value': ('django.db.models.fields.CharField', [], {'max_length': '1024', 'blank': 'True'}),
+            'wcs_instance': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'api_secrets'", 'to': u"orm['wcsinst.WcsInstance']"})
+        },
+        u'wcsinst.variable': {
+            'Meta': {'object_name': 'Variable'},
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'key': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'value': ('django.db.models.fields.CharField', [], {'max_length': '1024', 'blank': 'True'}),
+            'wcs_instance': ('django.db.models.fields.related.ForeignKey', [], {'related_name': "'variables'", 'to': u"orm['wcsinst.WcsInstance']"})
+        },
+        u'wcsinst.wcsinstance': {
+            'Meta': {'object_name': 'WcsInstance'},
+            'backoffice_feed_url': ('django.db.models.fields.URLField', [], {'max_length': '128', 'blank': 'True'}),
+            'clicrdv': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'domain': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '100'}),
+            'domino': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'drupal': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'ezldap': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'postgresql': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'strongbox': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'title': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '50'})
+        }
+    }
+
+    complete_apps = ['wcsinst']
\ No newline at end of file
diff --git a/wcsinst/wcsinst/models.py b/wcsinst/wcsinst/models.py
index c9459c3..5590520 100644
--- a/wcsinst/wcsinst/models.py
+++ b/wcsinst/wcsinst/models.py
@@ -15,10 +15,6 @@ class WcsInstance(models.Model):
     # site-options.cfg options
     postgresql = models.BooleanField(verbose_name=_('postgresql'),
             blank=True)
-    saml2_use_role = models.BooleanField(verbose_name=_('use saml2 roles'),
-            blank=True)
-    saml2_role_prefix = models.CharField(verbose_name=_('role prefix'),
-            blank=True, max_length=128)
     backoffice_feed_url = models.URLField(verbose_name=_('backoffice feed url'),
             blank=True, max_length=128)
     drupal = models.BooleanField(verbose_name=_('drupal'),
@@ -39,8 +35,6 @@ class WcsInstance(models.Model):
     def site_options_cfg(self):
         d = {
                 'postgresql': self.postgresql,
-                'saml2_use_role': self.saml2_use_role,
-                'saml2_role_prefix': self.saml2_role_prefix,
                 'backoffice_feed_url': self.backoffice_feed_url,
                 'drupal': self.drupal,
                 'ezldap': self.ezldap,