diff --git a/src/slic3r/GUI/Gizmos/GLGizmoSVG.cpp b/src/slic3r/GUI/Gizmos/GLGizmoSVG.cpp
index c96a215943..8e27d4d1f7 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoSVG.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoSVG.cpp
@@ -1595,20 +1595,21 @@ void GLGizmoSVG::draw_filename(){
             if (dlg.ShowModal() == wxID_OK ){
                 last_used_directory = dlg.GetDirectory();
                 wxString out_path = dlg.GetPath();
-                std::string path{out_path.c_str()};
-                //Slic3r::save(*m_volume_shape.svg_file.image, path);
-
-                std::ofstream stream(path);
+                //Slic3r::save(*m_volume_shape.svg_file.image, out_path.ToUTF8().data());
+                
+                // Be carefull out_path_str is not UTF8 on purpose - storing into not ut6 filepath
+                std::string out_path_str(out_path.c_str()); 
+                std::ofstream stream(out_path_str);
                 if (stream.is_open()){
                     stream << *svg.file_data;
 
                     // change source file
                     m_filename_preview.clear();
-                    m_volume_shape.svg_file->path = path;
+                    m_volume_shape.svg_file->path = out_path.ToUTF8().data();
                     m_volume_shape.svg_file->path_in_3mf.clear(); // possible change name
                     m_volume->emboss_shape->svg_file = m_volume_shape.svg_file; // copy - write changes into volume
                 } else {
-                    BOOST_LOG_TRIVIAL(error) << "Opening file: \"" << path << "\" Failed";
+                    BOOST_LOG_TRIVIAL(error) << "Opening file: \"" << out_path_str << "\" Failed";
                 }
 
             }
diff --git a/src/slic3r/Utils/WxFontUtils.cpp b/src/slic3r/Utils/WxFontUtils.cpp
index d99e6b09f2..76a04a314c 100644
--- a/src/slic3r/Utils/WxFontUtils.cpp
+++ b/src/slic3r/Utils/WxFontUtils.cpp
@@ -166,12 +166,12 @@ std::string WxFontUtils::get_human_readable_name(const wxFont &font)
     if (!font.IsOk()) return "Font is NOT ok.";
     // Face name is optional in wxFont
     if (!font.GetFaceName().empty()) {
-        return std::string(font.GetFaceName().c_str());
+        return std::string(font.GetFaceName().ToUTF8().data());
     } else {
         return std::string((font.GetFamilyString() + " " +
                             font.GetStyleString() + " " +
                             font.GetWeightString())
-                               .c_str());
+                               .ToUTF8().data());
     }
 }
 
@@ -186,14 +186,14 @@ std::string WxFontUtils::store_wxFont(const wxFont &font)
         "IsFixedWidth(" << font.IsFixedWidth() << "), " <<
         "IsUsingSizeInPixels(" << font.IsUsingSizeInPixels() << "), " <<
         "Encoding(" << (int)font.GetEncoding() << "), " ;
-    return std::string(font_descriptor.c_str());
+    return std::string(font_descriptor.ToUTF8().data());
 }
 
 wxFont WxFontUtils::load_wxFont(const std::string &font_descriptor)
 {
     BOOST_LOG_TRIVIAL(trace) << "'" << font_descriptor << "'font descriptor string param of load_wxFont()";
     wxString font_descriptor_wx(font_descriptor);
-    BOOST_LOG_TRIVIAL(trace) << "'" << font_descriptor_wx.c_str() << "' wx string descriptor";
+    BOOST_LOG_TRIVIAL(trace) << "'" << font_descriptor_wx.ToUTF8().data() << "' wx string descriptor";
     wxFont wx_font(font_descriptor_wx);
     BOOST_LOG_TRIVIAL(trace) << "loaded font is '" << get_human_readable_name(wx_font) << "'.";
     return wx_font;