diff --git a/src/Controller/Api/UserinfoController.php b/src/Controller/Api/UserinfoController.php
index e4a906e..9981af7 100644
--- a/src/Controller/Api/UserinfoController.php
+++ b/src/Controller/Api/UserinfoController.php
@@ -8,6 +8,7 @@ use App\BusProNet\Model\Notification;
 use App\BusProNet\Model\PersonalData;
 use App\Entity\User;
 use App\Security\Crypt;
+use App\Security\Role;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Response;
@@ -52,8 +53,9 @@ class UserinfoController extends AbstractController
                 return new JsonResponse(['message' => $data->message, 'code' => $data->code], Response::HTTP_BAD_REQUEST);
             }
 
-            // Patch current user's roles
-            $data->roles = $user->getRoles();
+            // Patch current user's roles. The implicit ROLE_USER says nothing about the
+            // account — every authenticated user holds it — and is not exported.
+            $data->roles = Role::assignedOnly($user->getRoles());
 
             // Patch current user's hotel codes
             $data->hotelCodes = $user->getHotelCodes();
diff --git a/src/Security/Role.php b/src/Security/Role.php
index 836cbc9..46b9651 100644
--- a/src/Security/Role.php
+++ b/src/Security/Role.php
@@ -72,6 +72,19 @@ final class Role
         return [] === $importable ? [self::CUSTOMER] : $importable;
     }
 
+    /**
+     * The roles actually assigned to an account — everything except the implicit ROLE_USER,
+     * which User::getRoles() prepends and which is never stored.
+     *
+     * @param string[] $roles
+     *
+     * @return string[]
+     */
+    public static function assignedOnly(array $roles): array
+    {
+        return array_values(array_diff($roles, [self::USER]));
+    }
+
     /**
      * The non-privileged half of a role set: what BpnAuthenticator syncs from the BusPro CRM.
      *
@@ -81,7 +94,7 @@ final class Role
      */
     public static function syncedOnly(array $roles): array
     {
-        return array_values(array_diff($roles, self::PRIVILEGED, [self::USER]));
+        return array_values(array_diff(self::assignedOnly($roles), self::PRIVILEGED));
     }
 
     /**
diff --git a/src/Twig/AppRuntime.php b/src/Twig/AppRuntime.php
index 146794d..fd763c6 100644
--- a/src/Twig/AppRuntime.php
+++ b/src/Twig/AppRuntime.php
@@ -141,11 +141,7 @@ class AppRuntime implements RuntimeExtensionInterface
 
         $mapped = [];
 
-        foreach ($roles as $role) {
-            if ('ROLE_USER' === $role) {
-                continue;
-            }
-
+        foreach (Role::assignedOnly($roles) as $role) {
             $mapped[] = $labels[$role] ?? $role;
         }
 
diff --git a/tests/Security/RoleTest.php b/tests/Security/RoleTest.php
index a38b508..81c6064 100644
--- a/tests/Security/RoleTest.php
+++ b/tests/Security/RoleTest.php
@@ -38,6 +38,15 @@ class RoleTest extends TestCase
         self::assertSame([Role::CUSTOMER], Role::filterImportable([]));
     }
 
+    public function testAssignedOnlyDropsTheImplicitRoleUser(): void
+    {
+        $roles = Role::assignedOnly([Role::USER, Role::TEAMER, Role::GROUPS_ADMIN]);
+
+        self::assertSame([Role::TEAMER, Role::GROUPS_ADMIN], $roles);
+        // The value is JSON-encoded into the userinfo response and must not become an object.
+        self::assertSame(array_keys($roles), range(0, \count($roles) - 1));
+    }
+
     public function testCombineKeepsEachHalfInItsOwnLane(): void
     {
         $roles = Role::combine([Role::TEAMER, Role::ADMIN], [Role::GROUPS_ADMIN, Role::TEAMER]);