diff --git a/MangoPay.SDK/Entities/CardInfo.cs b/MangoPay.SDK/Entities/CardInfo.cs
index 7b3cc9a0..e52e2c16 100644
--- a/MangoPay.SDK/Entities/CardInfo.cs
+++ b/MangoPay.SDK/Entities/CardInfo.cs
@@ -15,7 +15,7 @@ public class CardInfo
         public CountryIso IssuerCountryCode;
 
         /// <summary>The type of card product: DEBIT, CREDIT, CHARGE CARD.</summary>
-        public CardInfoType Type;
+        public CardInfoType? Type;
         
         /// <summary>The card brand. Examples include: AMERICAN EXPRESS, DISCOVER, JCB, MASTERCARD, VISA, etc.</summary>
         public string Brand;