diff --git a/vendor/magento/module-catalog-graph-ql/Model/AttributesJoiner.php b/vendor/magento/module-catalog-graph-ql/Model/AttributesJoiner.php
index 34f5dd83168..99d391ef764 100644
--- a/vendor/magento/module-catalog-graph-ql/Model/AttributesJoiner.php
+++ b/vendor/magento/module-catalog-graph-ql/Model/AttributesJoiner.php
@@ -10,6 +10,7 @@ namespace Magento\CatalogGraphQl\Model;
 use GraphQL\Language\AST\FieldNode;
 use GraphQL\Language\AST\InlineFragmentNode;
 use GraphQL\Language\AST\NodeKind;
+use Magento\Catalog\Api\Data\CategoryInterface;
 use Magento\Eav\Model\Entity\Collection\AbstractCollection;
 use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
 
@@ -18,6 +19,7 @@ use Magento\Framework\GraphQl\Schema\Type\ResolveInfo;
  */
 class AttributesJoiner
 {
+    private const REQUEST_FIELD_NAME = 'categoryList';
     /**
      * @var array
      */
@@ -75,7 +77,6 @@ class AttributesJoiner
                     $fragmentFields[] = $this->addInlineFragmentFields($resolveInfo, $field);
                 } elseif ($field->kind === NodeKind::FRAGMENT_SPREAD &&
                     ($spreadFragmentNode = $resolveInfo->fragments[$field->name->value])) {
-
                     foreach ($spreadFragmentNode->selectionSet->selections as $spreadNode) {
                         if (isset($spreadNode->selectionSet->selections)) {
                             $fragmentFields[] = $this->getQueryFields($spreadNode, $resolveInfo);
@@ -85,6 +86,11 @@ class AttributesJoiner
                     }
                 } else {
                     $selectedFields[] = $field->name->value;
+                    $selectedFields = $this->addIsAnchoredAttributeToSelectedFiled(
+                        $resolveInfo,
+                        $field,
+                        $selectedFields
+                    );
                 }
             }
             if ($fragmentFields) {
@@ -172,4 +178,24 @@ class AttributesJoiner
     {
         $this->queryFields[$fieldNode->name->value][$fieldNode->name->loc->start] = $selectedFields;
     }
+
+    /**
+     * Add `is_anchor` attribute to selected field
+     *
+     * @param ResolveInfo $resolveInfo
+     * @param FieldNode $fieldNode
+     * @param array $selectedFields
+     * @return array
+     */
+    private function addIsAnchoredAttributeToSelectedFiled(
+        ResolveInfo $resolveInfo,
+        FieldNode $fieldNode,
+        array $selectedFields
+    ): array {
+        if ($resolveInfo->fieldName === self::REQUEST_FIELD_NAME
+            && $fieldNode->name->value === CategoryInterface::KEY_PRODUCT_COUNT) {
+            $selectedFields[] = 'is_anchor';
+        }
+        return $selectedFields;
+    }
 }