core/modules/taxonomy/src/Entity/Term.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/modules/taxonomy/src/Entity/Term.php b/core/modules/taxonomy/src/Entity/Term.php
index a704687..77cefcc 100644
--- a/core/modules/taxonomy/src/Entity/Term.php
+++ b/core/modules/taxonomy/src/Entity/Term.php
@@ -182,7 +182,7 @@ public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
   public static function bundleFieldDefinitions(EntityTypeInterface $entity_type, $bundle, array $base_field_definitions) {
     // Only terms in the same bundle can be a parent.
     $fields['parent'] = clone $base_field_definitions['parent'];
-    $fields['parent']->setSetting('handler_settings', ['target_bundles' => [$bundle]]);
+    $fields['parent']->setSetting('handler_settings', ['target_bundles' => [$bundle => $bundle]]);
     return $fields;
   }