diff --git a/src/lib/common/Settings.cpp b/src/lib/common/Settings.cpp
index 5c28f0c58..6dd9d27b3 100644
--- a/src/lib/common/Settings.cpp
+++ b/src/lib/common/Settings.cpp
@@ -56,11 +56,6 @@ Settings::Settings(QObject *parent) : QObject(parent)
   qInfo().noquote() << "settings file:" << m_settings->fileName();
 }
 
-bool Settings::isPortableSettings()
-{
-  return (QFile(instance()->m_portableSettingsFile).exists());
-}
-
 void Settings::cleanSettings()
 {
   const QStringList keys = m_settings->allKeys();
diff --git a/src/lib/common/Settings.h b/src/lib/common/Settings.h
index 50a4bb1dd..461de620f 100644
--- a/src/lib/common/Settings.h
+++ b/src/lib/common/Settings.h
@@ -161,7 +161,6 @@ private:
   Settings *operator=(Settings &other) = delete;
   Settings(const Settings &other) = delete;
   ~Settings() = default;
-  static bool isPortableSettings();
   void cleanSettings();
 
   QSettings *m_settings = nullptr;