diff --git a/crates/cli/src/subcommands/generate/csharp.rs b/crates/cli/src/subcommands/generate/csharp.rs
index 8913bb6b52..f9995d0388 100644
--- a/crates/cli/src/subcommands/generate/csharp.rs
+++ b/crates/cli/src/subcommands/generate/csharp.rs
@@ -589,6 +589,11 @@ fn autogen_csharp_product_table_common(
     writeln!(output, "{{").unwrap();
     {
         indent_scope!(output);
+        writeln!(
+            output,
+            "[Newtonsoft.Json.JsonObject(Newtonsoft.Json.MemberSerialization.OptIn)]"
+        )
+        .unwrap();
         writeln!(output, "public partial class {name} : IDatabaseTable").unwrap();
         writeln!(output, "{{").unwrap();
         {