diff --git a/subject/product.go b/subject/product.go
index 2acfadc..39c5a2b 100644
--- a/subject/product.go
+++ b/subject/product.go
@@ -12,9 +12,11 @@ var Product = struct {
 	CreateRequestStep   string
 	ProcessApplyRequest string
 	RequestChangeStatus string
+	WebhookStockUpdate  string
 }{
 	ApplyRequest:        getProductValue("apply_request"),
 	CreateRequestStep:   getProductValue("create_request_step"),
 	ProcessApplyRequest: getProductValue("process_apply_request"),
 	RequestChangeStatus: getProductValue("request_change_status"),
+	WebhookStockUpdate:  getProductValue("webhook_stock_update"),
 }