diff --git a/src/GUI/Preset.cpp b/src/GUI/Preset.cpp
index 8d7b56969..bc0a66013 100644
--- a/src/GUI/Preset.cpp
+++ b/src/GUI/Preset.cpp
@@ -5,102 +5,97 @@
 
 #include "Dialogs/PresetEditor.hpp"
 
-#include <boost/filesystem.hpp>
-
 using namespace std::literals::string_literals;
 using namespace boost;
 
 namespace Slic3r { namespace GUI {
 
-    Preset::Preset(std::string load_dir, std::string filename, preset_t p) : group(p), file(filename), dir(load_dir) {
-        // find last .ini at the end of the filename.
-        std::regex ini (".ini[ ]*$");
-        this->name = std::regex_replace(filename, ini, "$1");
+Preset::Preset(std::string load_dir, std::string filename, preset_t p) : group(p), _file(wxFileName(load_dir, filename)) {
+    this->name = this->_file.GetName();
 
-        this->_dirty_config = std::make_shared<Slic3r::Config>();
-        this->_config = std::make_shared<Slic3r::Config>();
-    }
+    this->_dirty_config = std::make_shared<Slic3r::Config>();
+    this->_config = std::make_shared<Slic3r::Config>();
+}
 
-    t_config_option_keys Preset::dirty_options() const {
-        t_config_option_keys dirty;
+t_config_option_keys Preset::dirty_options() const {
+    t_config_option_keys dirty;
 
-        auto diff_config = this->_config->diff(this->_dirty_config);
-        std::move(diff_config.begin(), diff_config.end(), std::back_inserter(dirty));
+    auto diff_config = this->_config->diff(this->_dirty_config);
+    std::move(diff_config.begin(), diff_config.end(), std::back_inserter(dirty));
 
-        auto extra = this->_group_overrides();
-        std::copy_if(extra.cbegin(), extra.cend(), std::back_inserter(dirty), 
-                [this](const std::string x) { return !this->_config->has(x) && this->_dirty_config->has(x);});
+    auto extra = this->_group_overrides();
+    std::copy_if(extra.cbegin(), extra.cend(), std::back_inserter(dirty), 
+            [this](const std::string x) { return !this->_config->has(x) && this->_dirty_config->has(x);});
 
-        dirty.erase(std::remove_if(dirty.begin(), dirty.end(), 
-                [this](const std::string x) { return this->_config->has(x) && !this->_dirty_config->has(x);}),
-                dirty.end());
+    dirty.erase(std::remove_if(dirty.begin(), dirty.end(), 
+            [this](const std::string x) { return this->_config->has(x) && !this->_dirty_config->has(x);}),
+            dirty.end());
 
-        return dirty;
-    }
+    return dirty;
+}
 
-    bool Preset::dirty() const { 
-        return this->dirty_options().size() > 0;
-    }
+bool Preset::dirty() const { 
+    return this->dirty_options().size() > 0;
+}
 
-    Slic3r::Config Preset::dirty_config() {
-        if (!this->loaded()) load_config();
-        Slic3r::Config result { Slic3r::Config(*(this->_dirty_config)) };
-        return result;
-    }
+Slic3r::Config Preset::dirty_config() {
+    if (!this->loaded()) load_config();
+    Slic3r::Config result { Slic3r::Config(*(this->_dirty_config)) };
+    return result;
+}
 
-    config_ptr Preset::load_config() {
-        if (this->loaded()) return this->_dirty_config;
+config_ptr Preset::load_config() {
+    if (this->loaded()) return this->_dirty_config;
 
-        t_config_option_keys keys { this->_group_keys() };
-        t_config_option_keys extra_keys { this->_group_overrides() };
+    t_config_option_keys keys { this->_group_keys() };
+    t_config_option_keys extra_keys { this->_group_overrides() };
 
-        if (this->default_preset) {
-            this->_config = Slic3r::Config::new_from_defaults(keys);
-        } else if (this->file.size() > 0) {
-            filesystem::path full_path { this->dir + "/"s + this->file };
-            config_ptr config = Slic3r::Config::new_from_defaults(keys);
-            if (filesystem::exists(full_path)) {
-                auto external_config { Slic3r::Config::new_from_ini(full_path.string()) };
-                // Apply preset values on top of defaults
-                config = Slic3r::Config::new_from_defaults(keys);
-                config->apply_with_defaults(external_config, keys);
+    if (this->default_preset) {
+        this->_config = Slic3r::Config::new_from_defaults(keys);
+    } else if (this->_file.HasName() > 0) {
+        config_ptr config = Slic3r::Config::new_from_defaults(keys);
+        if (this->file_exists()) {
+            auto external_config { Slic3r::Config::new_from_ini(this->_file.GetFullPath().ToStdString()) };
+            // Apply preset values on top of defaults
+            config = Slic3r::Config::new_from_defaults(keys);
+            config->apply_with_defaults(external_config, keys);
 
-                // For extra_keys don't populate defaults.
-                if (extra_keys.size() > 0 && !this->external){
-                    config->apply(external_config, extra_keys);
-                }
-
-                this->_config = config;
+            // For extra_keys don't populate defaults.
+            if (extra_keys.size() > 0 && !this->external){
+                config->apply(external_config, extra_keys);
             }
-        }
 
-        this->_dirty_config->apply(this->_config);
-        return this->_dirty_config;
+            this->_config = config;
+        }
     }
 
-    t_config_option_keys Preset::_group_keys() const {
-        switch (this->group) {
-            case preset_t::Print:
-                return PrintEditor::options();
-            case preset_t::Material:
-                return MaterialEditor::options();
-            case preset_t::Printer:
-                return PrinterEditor::options();
-            default:
-                return t_config_option_keys();
-        }
+    this->_dirty_config->apply(this->_config);
+    return this->_dirty_config;
+}
+
+t_config_option_keys Preset::_group_keys() const {
+    switch (this->group) {
+        case preset_t::Print:
+            return PrintEditor::options();
+        case preset_t::Material:
+            return MaterialEditor::options();
+        case preset_t::Printer:
+            return PrinterEditor::options();
+        default:
+            return t_config_option_keys();
     }
-    t_config_option_keys Preset::_group_overrides() const {
-        switch (this->group) {
-            case preset_t::Print:
-                return PrintEditor::overriding_options();
-            case preset_t::Material:
-                return MaterialEditor::overriding_options();
-            case preset_t::Printer:
-                return PrinterEditor::overriding_options();
-            default:
-                return t_config_option_keys();
-        }
+}
+t_config_option_keys Preset::_group_overrides() const {
+    switch (this->group) {
+        case preset_t::Print:
+            return PrintEditor::overriding_options();
+        case preset_t::Material:
+            return MaterialEditor::overriding_options();
+        case preset_t::Printer:
+            return PrinterEditor::overriding_options();
+        default:
+            return t_config_option_keys();
     }
+}
 
 }} // namespace Slic3r::GUI
diff --git a/src/GUI/Preset.hpp b/src/GUI/Preset.hpp
index d01924ad9..6c6c0d637 100644
--- a/src/GUI/Preset.hpp
+++ b/src/GUI/Preset.hpp
@@ -11,6 +11,7 @@
     #include <wx/wx.h>
     #include <wx/string.h>
     #include <wx/filefn.h> 
+    #include <wx/filename.h> 
 #endif
 
 namespace Slic3r { namespace GUI {
@@ -37,7 +38,7 @@ class Preset {
 public:
     friend class PresetEditor;
     preset_t group; 
-    std::string name {""};
+    wxString name {""};
     bool external {false};
 
     /// Preset
@@ -46,12 +47,13 @@ public:
     /// Search the compatible_printers config option list for this preset name.
     /// Assume that Printer configs are compatible with other Printer configs
     bool compatible(std::string printer_name) { return true; }
+    bool compatible(const wxString& printer_name) { if (group == preset_t::Printer) return true; return true; }
     bool compatible(const Preset& other) {return (this->group == preset_t::Printer || (compatible(other.name) && other.group == preset_t::Printer));}
 
     /// Format the name appropriately.
-    wxString dropdown_name() { return (this->dirty() ? wxString(this->name) << " " << _("(modified)") : wxString(this->name)); }
+    wxString dropdown_name() { return (this->dirty() ? this->name << " " << _("(modified)") : this->name); }
 
-    bool file_exists() const { return wxFileExists(this->name); }
+    bool file_exists() const { return this->_file.IsFileReadable(); }
 
     bool prompt_unsaved_changes(wxWindow* parent);
 
@@ -101,10 +103,7 @@ private:
     config_ptr _dirty_config { nullptr };
 
     /// Underlying filename for this preset config
-    std::string file {""};
-
-    /// dirname for the file.
-    std::string dir  {""};
+    wxFileName _file {};
 
     /// All the options owned by the corresponding editor
     t_config_option_keys _group_keys() const;