diff --git a/src/ArtDetailWindow.cpp b/src/ArtDetailWindow.cpp
index 3f864a4..8f4a9fc 100644
--- a/src/ArtDetailWindow.cpp
+++ b/src/ArtDetailWindow.cpp
@@ -18,8 +18,10 @@
 #include <QPushButton>
 #include <QTextEdit>
 
-ArtDetailWindow::ArtDetailWindow(const QString& filename, const QString& assetDirectory, QWidget* parent) : QDialog(parent) {
-	setMinimumWidth(800);
+ArtDetailWindow::ArtDetailWindow(const QString &filename, const QDir &assetDirectory, QWidget *parent)
+    : QDialog(parent)
+{
+    setMinimumWidth(800);
 	setMinimumHeight(600);
 	setWindowModality(Qt::WindowModality::WindowModal);
 	setWindowTitle(filename);
@@ -37,7 +39,7 @@ ArtDetailWindow::ArtDetailWindow(const QString& filename, const QString& assetDi
 	mainLayout->addWidget(formLayoutWidget);
 
 	QImage image;
-	image.load(QStringLiteral("%1/%2.webp").arg(assetDirectory, withoutExtension));
+    image.load(assetDirectory.absoluteFilePath(QStringLiteral("%1.webp").arg(withoutExtension)));
 
     auto previewBox = new QGroupBox(i18nc("@title:group", "Preview"));
     mainLayout->addWidget(previewBox);
diff --git a/src/ArtDetailWindow.h b/src/ArtDetailWindow.h
index c3d34fe..002a1d4 100644
--- a/src/ArtDetailWindow.h
+++ b/src/ArtDetailWindow.h
@@ -6,17 +6,18 @@
 
 #include <QCheckBox>
 #include <QDateEdit>
+#include <QDialog>
+#include <QDir>
 #include <QJsonObject>
 #include <QLineEdit>
 #include <QListWidget>
 #include <QStringListModel>
 #include <QTextEdit>
-#include <QDialog>
 
 class ArtDetailWindow : public QDialog {
 	Q_OBJECT
 public:
-	ArtDetailWindow(const QString& filename, const QString& assetDirectory, QWidget* parent = nullptr);
+    ArtDetailWindow(const QString &filename, const QDir &assetDirectory, QWidget *parent = nullptr);
 
 private:
 	void loadData(const QString& filename);
diff --git a/src/ArtModel.cpp b/src/ArtModel.cpp
index 80dd0dd..a5b7a0c 100644
--- a/src/ArtModel.cpp
+++ b/src/ArtModel.cpp
@@ -14,8 +14,10 @@
 #include <QPixmap>
 #include <QtConcurrent>
 
-ArtModel::ArtModel(const QString& definitionDirectory, const QString& assetDirectory) : QAbstractTableModel() {
-	piecesFuture = new QFutureWatcher<ArtPiece>(this);
+ArtModel::ArtModel(const QDir &definitionDirectory, const QDir &assetDirectory)
+    : QAbstractTableModel()
+{
+    piecesFuture = new QFutureWatcher<ArtPiece>(this);
 	connect(piecesFuture, &QFutureWatcher<ArtPiece>::resultReadyAt, this, &ArtModel::pieceFinished);
 	connect(piecesFuture, &QFutureWatcher<ArtPiece>::finished, this, &ArtModel::finished);
 
@@ -31,9 +33,9 @@ ArtModel::ArtModel(const QString& definitionDirectory, const QString& assetDirec
 			continue;
 		}
 
-		pieceList.push_back(PieceInformation{QStringLiteral("%1/%2").arg(definitionDirectory, info.baseName()), QStringLiteral("%1/%2").arg(assetDirectory, info.baseName())});
+        pieceList.push_back(PieceInformation{definitionDirectory.absoluteFilePath(info.baseName()), assetDirectory.absoluteFilePath(info.baseName())});
 
-		beginInsertRows(QModelIndex(), m_artPieces.size(), m_artPieces.size() + 1);
+        beginInsertRows(QModelIndex(), m_artPieces.size(), m_artPieces.size() + 1);
 
 		m_artPieces.push_back(ArtPiece{});
 
diff --git a/src/ArtModel.h b/src/ArtModel.h
index 097157d..2887bfd 100644
--- a/src/ArtModel.h
+++ b/src/ArtModel.h
@@ -5,9 +5,10 @@
 #pragma once
 
 #include <QAbstractTableModel>
+#include <QDir>
+#include <QFutureWatcher>
 #include <QImage>
 #include <QJsonObject>
-#include <QFutureWatcher>
 
 struct ArtPiece {
 	QString filename, jsonFilename;
@@ -23,9 +24,9 @@ struct ArtPiece {
 class ArtModel : public QAbstractTableModel {
 	Q_OBJECT
 public:
-	explicit ArtModel(const QString& definitionDirectory, const QString& assetDirectory);
+    explicit ArtModel(const QDir &definitionDirectory, const QDir &assetDirectory);
 
-	[[nodiscard]] int rowCount(const QModelIndex &parent) const override;
+    [[nodiscard]] int rowCount(const QModelIndex &parent) const override;
 	[[nodiscard]] int columnCount(const QModelIndex &parent) const override;
 
 	[[nodiscard]] QVariant data(const QModelIndex &index, int role) const override;
diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 8f70c85..b8a31d8 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -13,7 +13,8 @@
 #include "ArtDetailWindow.h"
 #include "ArtModel.h"
 
-MainWindow::MainWindow(const QString& definitionDirectory, const QString& assetDirectory, const QString& dataDirectory) {
+MainWindow::MainWindow(const QDir &definitionDirectory, const QDir &assetDirectory, const QDir &dataDirectory)
+{
     setWindowTitle(i18nc("@title:window", "Redai"));
     setMinimumSize(1280, 720);
 
@@ -24,7 +25,7 @@ MainWindow::MainWindow(const QString& definitionDirectory, const QString& assetD
 
     auto editConfigAction = manageMenu->addAction(i18nc("@action:inmenu", "Edit Config..."));
     connect(editConfigAction, &QAction::triggered, this, [this, dataDirectory] {
-        auto window = new ArtConfigWindow(QStringLiteral("%1/art-config.json").arg(dataDirectory), this);
+        auto window = new ArtConfigWindow(dataDirectory.absoluteFilePath("art-config.json"), this);
         window->show();
     });
 
diff --git a/src/MainWindow.h b/src/MainWindow.h
index 688aa88..abaf364 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -4,10 +4,11 @@
 
 #pragma once
 
+#include <QDir>
 #include <QMainWindow>
 
 class MainWindow : public QMainWindow {
 	Q_OBJECT
 public:
-	explicit MainWindow(const QString& definitionDirectory, const QString& assetDirectory, const QString& dataDirectory);
+    explicit MainWindow(const QDir &definitionDirectory, const QDir &assetDirectory, const QDir &dataDirectory);
 };