diff --git a/src/Sylius/Bundle/CoreBundle/Resources/config/serializer/Model.ProductVariant.yml b/src/Sylius/Bundle/CoreBundle/Resources/config/serializer/Model.ProductVariant.yml
index 2ff0a0b9a99..de00d31a767 100644
--- a/src/Sylius/Bundle/CoreBundle/Resources/config/serializer/Model.ProductVariant.yml
+++ b/src/Sylius/Bundle/CoreBundle/Resources/config/serializer/Model.ProductVariant.yml
@@ -8,3 +8,12 @@ Sylius\Component\Core\Model\ProductVariant:
         sku:
             expose: true
             type: string
+        onHold:
+            expose: true
+            type: integer
+        onHand:
+            expose: true
+            type: integer
+        sold:
+            expose: true
+            type: integer