diff --git a/src/libslic3r/Format/bbs_3mf.cpp b/src/libslic3r/Format/bbs_3mf.cpp
index 0b2ce65c4..d3e08fa2b 100644
--- a/src/libslic3r/Format/bbs_3mf.cpp
+++ b/src/libslic3r/Format/bbs_3mf.cpp
@@ -7855,8 +7855,13 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
                 add_vector(stream, nozzle_volume_types);
                 stream << "\"/>\n";
 
+                auto* nozzle_diameter_option = dynamic_cast<const ConfigOptionFloatsNullable*>(config.option("nozzle_diameter"));
+                std::string nozzle_diameters_str;
+                if (nozzle_diameter_option)
+                    nozzle_diameters_str = nozzle_diameter_option->serialize();
+
                 stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << PRINTER_MODEL_ID_ATTR       << "\" " << VALUE_ATTR << "=\"" << plate_data->printer_model_id << "\"/>\n";
-                stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << NOZZLE_DIAMETERS_ATTR       << "\" " << VALUE_ATTR << "=\"" << plate_data->nozzle_diameters << "\"/>\n";
+                stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << NOZZLE_DIAMETERS_ATTR       << "\" " << VALUE_ATTR << "=\"" << nozzle_diameters_str << "\"/>\n";
                 stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << TIMELAPSE_TYPE_ATTR << "\" " << VALUE_ATTR << "=\"" << timelapse_type << "\"/>\n";
                 //stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << TIMELAPSE_ERROR_CODE_ATTR << "\" " << VALUE_ATTR << "=\"" << plate_data->timelapse_warning_code << "\"/>\n";
                 stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << SLICE_PREDICTION_ATTR << "\" " << VALUE_ATTR << "=\"" << plate_data->get_gcode_prediction_str() << "\"/>\n";
@@ -7865,8 +7870,11 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
                 stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << SUPPORT_USED_ATTR << "\" " << VALUE_ATTR << "=\"" << std::boolalpha<< plate_data->is_support_used << "\"/>\n";
                 stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << LABEL_OBJECT_ENABLED_ATTR << "\" " << VALUE_ATTR << "=\"" << std::boolalpha<< plate_data->is_label_object_enabled << "\"/>\n";
 
+                std::vector<int> filament_maps = plate_data->filament_maps;
+                if (filament_maps.empty())
+                    filament_maps = config.option<ConfigOptionInts>("filament_map")->values;
                 stream << "    <" << METADATA_TAG << " " << KEY_ATTR << "=\"" << FILAMENT_MAP_ATTR << "\" " << VALUE_ATTR << "=\"";
-                add_vector<int>(stream, plate_data->filament_maps);
+                add_vector<int>(stream, filament_maps);
                 stream << "\"/>\n";
 
                 if (plate_data->limit_filament_maps.size() > 0) {