diff --git a/src/main/java/it/gov/pagopa/receipt/pdf/helpdesk/entity/receipt/Receipt.java b/src/main/java/it/gov/pagopa/receipt/pdf/helpdesk/entity/receipt/Receipt.java
index 761880c..c2bdc31 100644
--- a/src/main/java/it/gov/pagopa/receipt/pdf/helpdesk/entity/receipt/Receipt.java
+++ b/src/main/java/it/gov/pagopa/receipt/pdf/helpdesk/entity/receipt/Receipt.java
@@ -29,5 +29,5 @@ public class Receipt {
     private long generatedAt;
     @JsonProperty("notified_at")
     private long notifiedAt;
-    private boolean isCart;
+    private Boolean isCart;
 }