diff --git a/src/slic3r/GUI/SelectMachine.cpp b/src/slic3r/GUI/SelectMachine.cpp
index f703c3521..f31ab635c 100644
--- a/src/slic3r/GUI/SelectMachine.cpp
+++ b/src/slic3r/GUI/SelectMachine.cpp
@@ -3417,7 +3417,6 @@ void SelectMachineDialog::on_dpi_changed(const wxRect &suggested_rect)
         ams_mapping_help_icon->msw_rescale();
         if (img_amsmapping_tip)img_amsmapping_tip->SetBitmap(ams_mapping_help_icon->bmp());
     }
-    enable_ams->msw_rescale();
     m_button_ensure->SetMinSize(SELECT_MACHINE_DIALOG_BUTTON_SIZE);
     m_button_ensure->SetCornerRadius(FromDIP(12));
     m_status_bar->msw_rescale();
diff --git a/src/slic3r/GUI/SelectMachine.hpp b/src/slic3r/GUI/SelectMachine.hpp
index 771fd505e..9117cbc51 100644
--- a/src/slic3r/GUI/SelectMachine.hpp
+++ b/src/slic3r/GUI/SelectMachine.hpp
@@ -366,7 +366,6 @@ protected:
     ScalableBitmap *                    print_weight{nullptr};
     ScalableBitmap *                    ams_mapping_help_icon{nullptr};
     wxStaticBitmap *                    img_ams_backup{nullptr};
-    ScalableBitmap *                    enable_ams{nullptr};
     ThumbnailData                       m_cur_input_thumbnail_data;
     ThumbnailData                       m_cur_no_light_thumbnail_data;
     ThumbnailData                       m_preview_thumbnail_data;//when ams map change