diff --git a/core/modules/field/src/Tests/Migrate/d6/MigrateFieldInstanceTest.php b/core/modules/field/src/Tests/Migrate/d6/MigrateFieldInstanceTest.php
index c0fb2f5..19f835f 100644
--- a/core/modules/field/src/Tests/Migrate/d6/MigrateFieldInstanceTest.php
+++ b/core/modules/field/src/Tests/Migrate/d6/MigrateFieldInstanceTest.php
@@ -83,7 +83,6 @@ public function testFieldInstanceSettings() {
       // storages so we end up with the default value for this setting.
       'handler' => 'default:node',
       'handler_settings' => array(),
-      'target_bundle' => NULL,
     );
     $field_settings = $field->getSettings();
     ksort($expected);