diff --git a/src/slic3r/GUI/AMSMaterialsSetting.cpp b/src/slic3r/GUI/AMSMaterialsSetting.cpp
index cf79b83a0b..5916b5edf2 100644
--- a/src/slic3r/GUI/AMSMaterialsSetting.cpp
+++ b/src/slic3r/GUI/AMSMaterialsSetting.cpp
@@ -1012,7 +1012,7 @@ void AMSMaterialsSetting::on_select_filament(wxCommandEvent &evt)
         std::vector<PACalibResult> cali_history = this->obj->pa_calib_tab;
         for (auto cali_item : cali_history) {
             if (cali_item.filament_id == ams_filament_id) {
-                items.push_back(cali_item.name);
+                items.push_back(from_u8(cali_item.name));
                 m_pa_profile_items.push_back(cali_item);
             }
         }
diff --git a/src/slic3r/GUI/CalibrationWizardSavePage.cpp b/src/slic3r/GUI/CalibrationWizardSavePage.cpp
index 47b92f1ca0..3f97bc07c3 100644
--- a/src/slic3r/GUI/CalibrationWizardSavePage.cpp
+++ b/src/slic3r/GUI/CalibrationWizardSavePage.cpp
@@ -261,7 +261,7 @@ void CaliPASaveAutoPanel::sync_cali_result(const std::vector<PACalibResult>& cal
             for (auto& info : m_obj->selected_cali_preset) {
                 if (history.filament_id == info.filament_id) {
                     filtered_results.push_back(history);
-                    selections.push_back(history.name);
+                    selections.push_back(from_u8(history.name));
                 }
             }
         }
@@ -311,7 +311,7 @@ void CaliPASaveAutoPanel::sync_cali_result(const std::vector<PACalibResult>& cal
 
             for (auto& name : preset_names) {
                 if (item.tray_id == name.first) {
-                    comboBox_tray_name->SetValue(name.second);
+                    comboBox_tray_name->SetValue(from_u8(name.second));
                 }
             }