diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UuidItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UuidItem.php
index e787029..94e8aee 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UuidItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UuidItem.php
@@ -18,7 +18,8 @@
  *   id = "uuid",
  *   label = @Translation("UUID"),
  *   description = @Translation("An entity field containing a UUID."),
- *   no_ui = TRUE
+ *   no_ui = TRUE,
+ *   default_formatter = "basic_string"
  * )
  */
 class UuidItem extends StringItem {