diff --git a/kfet/auth/models.py b/kfet/auth/models.py
index 2946d537..865852cd 100644
--- a/kfet/auth/models.py
+++ b/kfet/auth/models.py
@@ -37,19 +37,9 @@ class KFetPermission(Permission):
 
 
 class KFetGroup(Group):
-    # Même si on n'ajoute que des méthodes, on fait un héritage complet pour
+    # On fait un héritage complet pour
     # mieux distinguer les groupes K-Fêt via l'ORM (i.e. faire `KFetGroup.objects.all`)
 
-    def give_admin_access(self):
-        perms = KFetPermission.objects.all()
-        self.permissions.add(*perms)
-
-    def give_staff_access(self):
-        perms = KFetPermission.objects.filter(
-            codename__in=["is_team", "perform_deposit", "add_account", "add_transfer"]
-        )
-        self.permissions.add(*perms)
-
     class Meta:
         verbose_name = _("Groupe K-Fêt")
         verbose_name_plural = _("Groupes K-Fêt")
diff --git a/kfet/management/commands/loadkfetdevdata.py b/kfet/management/commands/loadkfetdevdata.py
index 83957e0f..43b14b09 100644
--- a/kfet/management/commands/loadkfetdevdata.py
+++ b/kfet/management/commands/loadkfetdevdata.py
@@ -12,7 +12,7 @@ from django.utils import timezone
 
 from gestioncof.management.base import MyBaseCommand
 from gestioncof.models import CofProfile
-from kfet.auth.models import KFetGroup
+from kfet.auth.models import KFetGroup, KFetPermission
 from kfet.models import (
     Account,
     Article,
@@ -37,8 +37,14 @@ class Command(MyBaseCommand):
         group_chef, _ = KFetGroup.objects.get_or_create(name="K-Fêt César")
         group_boy, _ = KFetGroup.objects.get_or_create(name="K-Fêt Légionnaire")
 
-        group_chef.give_admin_access()
-        group_chef.give_staff_access()
+        # Give relevant permissions to both groups
+        chef_perms = KFetPermission.objects.all()
+        group_chef.permissions.add(*chef_perms)
+
+        boy_perms = KFetPermission.objects.filter(
+            codename__in=["is_team", "perform_deposit", "add_account", "add_transfer"]
+        )
+        group_boy.permissions.add(*boy_perms)
 
         # ---
         # Comptes