diff --git a/modules/ticket/back/methods/ticket/specs/transferClient.spec.js b/modules/ticket/back/methods/ticket/specs/transferClient.spec.js
index 327a099d8..063433680 100644
--- a/modules/ticket/back/methods/ticket/specs/transferClient.spec.js
+++ b/modules/ticket/back/methods/ticket/specs/transferClient.spec.js
@@ -92,6 +92,7 @@ describe('Ticket transferClient()', () => {
         const addressFk = 1;
         try {
             await models.Ticket.transferClient(ctx, originalTicketId, clientId, addressFk, options);
+            fail('Expected an error to be thrown, but none was thrown.');
         } catch (e) {
             expect(e.message).toEqual('The address does not belong to the client');
         }
diff --git a/modules/ticket/back/methods/ticket/transferClient.js b/modules/ticket/back/methods/ticket/transferClient.js
index 76a66c528..2e845144e 100644
--- a/modules/ticket/back/methods/ticket/transferClient.js
+++ b/modules/ticket/back/methods/ticket/transferClient.js
@@ -1,3 +1,4 @@
+const UserError = require('vn-loopback/util/user-error');
 module.exports = Self => {
     Self.remoteMethodCtx('transferClient', {
         description: 'Transferring ticket to another client',