diff --git a/app/code/Magento/Catalog/Controller/Adminhtml/Product/Action/Attribute/Save.php b/app/code/Magento/Catalog/Controller/Adminhtml/Product/Action/Attribute/Save.php
index e04d71b99cb9b..d8f4e204c1bb4 100644
--- a/app/code/Magento/Catalog/Controller/Adminhtml/Product/Action/Attribute/Save.php
+++ b/app/code/Magento/Catalog/Controller/Adminhtml/Product/Action/Attribute/Save.php
@@ -162,7 +162,7 @@ public function execute()
                         $this->attributeHelper->getStoreWebsiteId($storeId)
                     );
                     if (!$stockItemDo->getProductId()) {
-                        $inventoryData[] = $productId;
+                        $inventoryData['product_id'] = $productId;
                     }
 
                     $stockItemId = $stockItemDo->getId();