diff --git a/backend/controllers/BookController.php b/backend/controllers/BookController.php
index 983b1f4..21da149 100644
--- a/backend/controllers/BookController.php
+++ b/backend/controllers/BookController.php
@@ -107,9 +107,6 @@
              */
             $model = $this->findModel($id);
         
-            $model->on_main = true;
-            $model->save(false, [ 'on_main' ]);
-        
             if ($model->load(\Yii::$app->request->post()) && $model->save()) {
                 $model->saveImage(UploadedFile::getInstanceByName('file'));
                 return $this->redirect('index');
--
libgit2 0.21.4