diff --git a/morpheus/_lib/src/io/serializers.cpp b/morpheus/_lib/src/io/serializers.cpp
index cf7f1d78cd..b95b32fd4b 100644
--- a/morpheus/_lib/src/io/serializers.cpp
+++ b/morpheus/_lib/src/io/serializers.cpp
@@ -158,7 +158,11 @@ void table_to_json(const TableInfoData& tbl, std::ostream& out_stream, bool incl
 
     OStreamSink sink(out_stream);
     auto destination     = cudf::io::sink_info(&sink);
-    auto options_builder = cudf::io::json_writer_options_builder(destination, tbl_view).metadata(tbl_meta).lines(true);
+    auto options_builder = cudf::io::json_writer_options_builder(destination, tbl_view)
+                               .metadata(tbl_meta)
+                               .lines(true)
+                               .include_nulls(true)
+                               .na_rep("null");
 
     cudf::io::write_json(options_builder.build(), rmm::mr::get_current_device_resource());