diff --git a/app/code/Magento/Catalog/Model/Product/Configuration/Item/ItemResolverComposite.php b/app/code/Magento/Catalog/Model/Product/Configuration/Item/ItemResolverComposite.php
index 68d0877c6cd66..d8cfb2eff264a 100644
--- a/app/code/Magento/Catalog/Model/Product/Configuration/Item/ItemResolverComposite.php
+++ b/app/code/Magento/Catalog/Model/Product/Configuration/Item/ItemResolverComposite.php
@@ -16,7 +16,7 @@
 class ItemResolverComposite implements ItemResolverInterface
 {
     /** @var string[] */
-    private $itemResolvers = [];
+    private $itemResolvers;
 
     /** @var ItemResolverInterface[] */
     private $itemResolversInstances = [];
diff --git a/app/code/Magento/Catalog/etc/di.xml b/app/code/Magento/Catalog/etc/di.xml
index 6840f557cbcb2..b509debe7bae1 100644
--- a/app/code/Magento/Catalog/etc/di.xml
+++ b/app/code/Magento/Catalog/etc/di.xml
@@ -1319,6 +1319,11 @@
             </argument>
         </arguments>
     </type>
+    <type name="Magento\Catalog\Model\Product\Configuration\Item\ItemResolverComposite">
+        <arguments>
+            <argument name="itemResolvers" xsi:type="array"/>
+        </arguments>
+    </type>
     <type name="Magento\Catalog\Api\ProductRepositoryInterface">
         <plugin name="remove_images_from_gallery_after_removing_product"
                 type="Magento\Catalog\Plugin\RemoveImagesFromGalleryAfterRemovingProduct"/>