diff --git a/src/plugin/class-engine.php b/src/plugin/class-engine.php
index 78e0017e..e8ae2d62 100644
--- a/src/plugin/class-engine.php
+++ b/src/plugin/class-engine.php
@@ -19,9 +19,8 @@ public function __construct() {
 		require 'class-subject.php';
 
 		( function () {
-			$transformer = new Transformer();
-
-			new Post_Type_UI( self::STORAGE_POST_TYPE, $transformer );
+			new Transformer();
+			new Post_Type_UI( self::STORAGE_POST_TYPE );
 
 			// REST API
 			new Subjects_Controller( self::STORAGE_POST_TYPE );
diff --git a/src/plugin/class-post-type-ui.php b/src/plugin/class-post-type-ui.php
index a607791f..f1a9b787 100644
--- a/src/plugin/class-post-type-ui.php
+++ b/src/plugin/class-post-type-ui.php
@@ -4,11 +4,9 @@
 
 class Post_Type_UI {
 	private string $post_type;
-	private Transformer $transformer;
 
-	public function __construct( $custom_post_type, Transformer $transformer ) {
-		$this->post_type   = $custom_post_type;
-		$this->transformer = $transformer;
+	public function __construct( $custom_post_type ) {
+		$this->post_type = $custom_post_type;
 
 		$this->remove_add_new_option( $this->post_type );