diff --git a/backend/src/graphql/resolver/UserResolver.test.ts b/backend/src/graphql/resolver/UserResolver.test.ts
index 9d78ecb6e..93c8016e0 100644
--- a/backend/src/graphql/resolver/UserResolver.test.ts
+++ b/backend/src/graphql/resolver/UserResolver.test.ts
@@ -131,6 +131,7 @@ describe('UserResolver', () => {
           firstName: 'Peter',
           lastName: 'Lustig',
           email: 'peter@lustig.de',
+          duration: expect.any(String),
         })
       })
     })