diff --git a/src/test/java/org/springframework/samples/petclinic/vet/VetTests.java b/src/test/java/org/springframework/samples/petclinic/vet/VetTests.java
index d8df78b8..4ac56eab 100644
--- a/src/test/java/org/springframework/samples/petclinic/vet/VetTests.java
+++ b/src/test/java/org/springframework/samples/petclinic/vet/VetTests.java
@@ -33,7 +33,7 @@ void testSerialization() {
 		vet.setId(123);
 		Vet other = (Vet) SerializationUtils.deserialize(SerializationUtils.serialize(vet));
 		assertThat(other.getFirstName()).isEqualTo(vet.getFirstName());
-		assertThat(other.getLastName()).isEqualTo(vet.getLastName());
+		assertThat(other.getLastName()).isEqualTo("Tom");
 		assertThat(other.getId()).isEqualTo(vet.getId());
 	}