diff --git a/src/Module/Core/Infrastructure/DataFixtures/AppFixtures.php b/src/Module/Core/Infrastructure/DataFixtures/AppFixtures.php
index bde7cc8..855bba5 100644
--- a/src/Module/Core/Infrastructure/DataFixtures/AppFixtures.php
+++ b/src/Module/Core/Infrastructure/DataFixtures/AppFixtures.php
@@ -30,8 +30,18 @@ class AppFixtures extends Fixture
 
     public function load(ObjectManager $manager): void
     {
-        $adminRole = $this->ensureSystemRole($manager, SystemRoles::ADMIN_CODE, 'Administrateur');
-        $userRole  = $this->ensureSystemRole($manager, SystemRoles::USER_CODE, 'Utilisateur');
+        $adminRole = $this->ensureSystemRole(
+            $manager,
+            SystemRoles::ADMIN_CODE,
+            'Administrateur',
+            'Role administrateur - bypass complet via is_admin',
+        );
+        $userRole = $this->ensureSystemRole(
+            $manager,
+            SystemRoles::USER_CODE,
+            'Utilisateur',
+            'Role de base sans permission specifique',
+        );
 
         $admin = new User();
         $admin->setUsername('admin');
@@ -58,16 +68,24 @@ class AppFixtures extends Fixture
     /**
      * Retourne le role systeme correspondant au code donne, en le creant
      * s'il n'existe pas encore (le purger Doctrine a pu vider la table role).
+     *
+     * La description est recopiee depuis la migration RBAC pour que les
+     * deux chemins (migration prod, fixtures dev) produisent un etat
+     * identique.
      */
-    private function ensureSystemRole(ObjectManager $manager, string $code, string $label): Role
-    {
+    private function ensureSystemRole(
+        ObjectManager $manager,
+        string $code,
+        string $label,
+        string $description,
+    ): Role {
         $role = $this->roleRepository->findByCode($code);
 
         if (null !== $role) {
             return $role;
         }
 
-        $role = new Role($code, $label, isSystem: true);
+        $role = new Role($code, $label, isSystem: true, description: $description);
         $manager->persist($role);
 
         return $role;