diff --git a/modules/ui_patterns_field/src/Plugin/Field/FieldType/SourceValueItem.php b/modules/ui_patterns_field/src/Plugin/Field/FieldType/SourceValueItem.php
index 1dde964d796edbbc95084c5dfc8bad5d9b2f48bf..315b3cfafb397cfb9ef695adf71bea3db2788934 100644
--- a/modules/ui_patterns_field/src/Plugin/Field/FieldType/SourceValueItem.php
+++ b/modules/ui_patterns_field/src/Plugin/Field/FieldType/SourceValueItem.php
@@ -18,8 +18,8 @@ use Drupal\Core\StringTranslation\TranslatableMarkup;
   id: "ui_patterns_source",
   label: new TranslatableMarkup("Source (UI Patterns)"),
   description: new TranslatableMarkup("Store an UI Patterns source configuration"),
-  default_formatter: "ui_patterns_source",
   default_widget: "ui_patterns_source",
+  default_formatter: "ui_patterns_source",
   list_class: MapFieldItemList::class,
 )]
 class SourceValueItem extends MapItem {