diff --git a/src/Enjin.Platform.Sdk/Enjin.Platform.Sdk.Marketplace/Model/ListingDataInput.cs b/src/Enjin.Platform.Sdk/Enjin.Platform.Sdk.Marketplace/Model/ListingDataInput.cs
index 24e91cf..efd20bb 100644
--- a/src/Enjin.Platform.Sdk/Enjin.Platform.Sdk.Marketplace/Model/ListingDataInput.cs
+++ b/src/Enjin.Platform.Sdk/Enjin.Platform.Sdk.Marketplace/Model/ListingDataInput.cs
@@ -1,10 +1,12 @@
-using JetBrains.Annotations;
+using System.Text.Json.Serialization;
+using JetBrains.Annotations;
 
 namespace Enjin.Platform.Sdk.Marketplace;
 
 /// <summary>
 /// Models a parameter for data for an auction.
 /// </summary>
+[JsonConverter(typeof(GraphQlParameterJsonConverter<ListingDataInput>))]
 [PublicAPI]
 public class ListingDataInput : GraphQlParameter<ListingDataInput>
 {