diff --git a/src/slic3r/GUI/PartPlate.cpp b/src/slic3r/GUI/PartPlate.cpp
index a8ce34ea78..ce9cdaa5d2 100644
--- a/src/slic3r/GUI/PartPlate.cpp
+++ b/src/slic3r/GUI/PartPlate.cpp
@@ -6469,7 +6469,7 @@ int PartPlateList::store_to_3mf_structure(PlateDataPtrs& plate_data_list, bool w
                     plate_data_item->filament_change_sequence = m_plate_list[i]->m_gcode_result->filament_change_sequence;
                     plate_data_item->nozzle_change_sequence = m_plate_list[i]->m_gcode_result->nozzle_change_sequence;
                     plate_data_item->optimal_assignment = m_plate_list[i]->m_gcode_result->optimal_assignment;
-                    plate_data_item->first_layer_time = std::to_string(m_plate_list[i]->cali_bboxes_data.first_layer_time);
+                    plate_data_item->first_layer_time = std::to_string(m_plate_list[i]->m_gcode_result->initial_layer_time);
 					Print *print                      = nullptr;
 					m_plate_list[i]->get_print((PrintBase **) &print, nullptr, nullptr);
 					if (print) {