diff --git a/core/modules/field/modules/list/tests/list.test b/core/modules/field/modules/list/tests/list.test
index 1ad52a62ad27489a42d7c273137da237266fc48b..26624652e363f6358a9d5909aa88e96068ddd55d 100644
--- a/core/modules/field/modules/list/tests/list.test
+++ b/core/modules/field/modules/list/tests/list.test
@@ -145,7 +145,7 @@ class ListDynamicValuesTestCase extends FieldTestCase {
       'id' => mt_rand(1, 10),
       'vid' => mt_rand(1, 10),
       'bundle' => 'test_bundle',
-      'label' => $this->randomString(),
+      'label' => $this->randomName(),
     );
     $this->entity = call_user_func_array('field_test_create_stub_entity', $this->test);
   }