diff --git a/app/preferenceeditor.h b/app/preferenceeditor.h
index 60ed8c0..ac09083 100644
--- a/app/preferenceeditor.h
+++ b/app/preferenceeditor.h
@@ -1,22 +1,22 @@
-#ifndef PREFERENCEEDITOR_H
-#define PREFERENCEEDITOR_H
-
-#include <QDialog>
-
-namespace Ui {
-class PreferenceEditor;
-}
-
-class PreferenceEditor : public QDialog
-{
-    Q_OBJECT
-
-public:
-    explicit PreferenceEditor(QWidget *parent = nullptr);
-    ~PreferenceEditor();
-
-private:
-    Ui::PreferenceEditor *ui;
-};
-
-#endif // PREFERENCEEDITOR_H
+#ifndef PREFERENCEEDITOR_H
+#define PREFERENCEEDITOR_H
+
+#include <QDialog>
+
+namespace Ui {
+class PreferenceEditor;
+}
+
+class PreferenceEditor : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit PreferenceEditor(QWidget *parent = nullptr);
+    ~PreferenceEditor();
+
+private:
+    Ui::PreferenceEditor *ui;
+};
+
+#endif // PREFERENCEEDITOR_H