diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 61ee7e1b8e..bb3bd28442 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -1897,7 +1897,7 @@ void ObjectList::part_selection_changed()
 
         if (item) {
             wxGetApp().obj_manipul()->get_og()->set_value("object_name", m_objects_model->GetName(item));
-            wxGetApp().obj_manipul()->update_warning_icon_state(/*get_mesh_errors_list(obj_idx, volume_id)*/);
+            wxGetApp().obj_manipul()->update_warning_icon_state(get_mesh_errors_list(obj_idx, volume_id));
         }
     }
 
diff --git a/src/slic3r/GUI/GUI_ObjectManipulation.cpp b/src/slic3r/GUI/GUI_ObjectManipulation.cpp
index bb6eec9636..b8c37dcd04 100644
--- a/src/slic3r/GUI/GUI_ObjectManipulation.cpp
+++ b/src/slic3r/GUI/GUI_ObjectManipulation.cpp
@@ -66,7 +66,7 @@ ObjectManipulation::ObjectManipulation(wxWindow* parent) :
                     return;
 
                 wxGetApp().obj_list()->fix_through_netfabb();
-                update_warning_icon_state(/*wxGetApp().obj_list()->get_mesh_errors_list()*/);
+                update_warning_icon_state(wxGetApp().obj_list()->get_mesh_errors_list());
             });
 
         return sizer;
@@ -364,17 +364,14 @@ void ObjectManipulation::emulate_kill_focus()
     else
         on_change(option, 0);
 }
+#endif // __APPLE__
 
-void ObjectManipulation::update_warning_icon_state(/*const wxString& tooltip*/)
+void ObjectManipulation::update_warning_icon_state(const wxString& tooltip)
 {
-    const wxString& tooltip = wxGetApp().obj_list()->get_mesh_errors_list();
-
     m_fix_throught_netfab_bitmap->SetBitmap(tooltip.IsEmpty() ? wxNullBitmap : m_manifold_warning_bmp.bmp());
     m_fix_throught_netfab_bitmap->SetToolTip(tooltip);
 }
 
-#endif // __APPLE__
-
 void ObjectManipulation::reset_settings_value()
 {
     m_new_position = Vec3d::Zero();
diff --git a/src/slic3r/GUI/GUI_ObjectManipulation.hpp b/src/slic3r/GUI/GUI_ObjectManipulation.hpp
index 1bff4e22fc..f86cd6e563 100644
--- a/src/slic3r/GUI/GUI_ObjectManipulation.hpp
+++ b/src/slic3r/GUI/GUI_ObjectManipulation.hpp
@@ -111,7 +111,7 @@ public:
     void emulate_kill_focus();
 #endif // __APPLE__
 
-    void update_warning_icon_state(/*const wxString& tooltip*/);
+    void update_warning_icon_state(const wxString& tooltip);
     void msw_rescale();
 
 private: