diff --git a/AMNet.Server/WebServer.cs b/AMNet.Server/WebServer.cs
index 6fc9d24..21917cb 100644
--- a/AMNet.Server/WebServer.cs
+++ b/AMNet.Server/WebServer.cs
@@ -142,6 +142,6 @@ internal static partial class WebServer
     
     [JsonSerializable(typeof(SystemState))]
     [JsonSerializable(typeof(CardReadRequest))]
-    [JsonSourceGenerationOptions(WriteIndented = true)]
+    [JsonSourceGenerationOptions(WriteIndented = true, DefaultIgnoreCondition = JsonIgnoreCondition.Never)]
     private partial class SerializerContext : JsonSerializerContext;
 }
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