diff --git a/app/code/Magento/ConfigurableProduct/Model/LinkManagement.php b/app/code/Magento/ConfigurableProduct/Model/LinkManagement.php
index 8b7e39adeb8f5..de325aace3ff7 100644
--- a/app/code/Magento/ConfigurableProduct/Model/LinkManagement.php
+++ b/app/code/Magento/ConfigurableProduct/Model/LinkManagement.php
@@ -72,7 +72,7 @@ public function getChildren($sku)
             foreach ($child->getAttributes() as $attribute) {
                 $attrCode = $attribute->getAttributeCode();
                 $value = $child->getDataUsingMethod($attrCode) ?: $child->getData($attrCode);
-                if (null !== $value && $attrCode != 'entity_id') {
+                if (null !== $value) {
                     $attributes[$attrCode] = $value;
                 }
             }