diff --git a/src/blackgui/guiapplication.cpp b/src/blackgui/guiapplication.cpp
index 8f7f44938..6d6a0bc2c 100644
--- a/src/blackgui/guiapplication.cpp
+++ b/src/blackgui/guiapplication.cpp
@@ -83,6 +83,9 @@ namespace BlackGui
     CGuiApplication::CGuiApplication(const QString &applicationName, CApplicationInfo::Application application, const QPixmap &icon) :
         CApplication(applicationName, application, false)
     {
+        this->addWindowModeOption();
+        this->addWindowResetSizeOption();
+
         if (!sGui)
         {
             CGuiApplication::registerMetadata();
@@ -116,6 +119,12 @@ namespace BlackGui
         this->addParserOption(m_cmdWindowMode);
     }
 
+    void CGuiApplication::addWindowResetSizeOption()
+    {
+        m_cmdWindowSizeReset = QCommandLineOption({{"r", "resetsize"}, QCoreApplication::translate("main", "Reset window size (ignore saved values).")});
+        this->addParserOption(m_cmdWindowSizeReset);
+    }
+
     void CGuiApplication::addWindowStateOption()
     {
         m_cmdWindowStateMinimized =  QCommandLineOption({{"m", "minimized"}, QCoreApplication::translate("main", "Start minimized in system tray.")});
diff --git a/src/blackgui/guiapplication.h b/src/blackgui/guiapplication.h
index e3c912ecb..8fc3742a3 100644
--- a/src/blackgui/guiapplication.h
+++ b/src/blackgui/guiapplication.h
@@ -93,6 +93,9 @@ namespace BlackGui
         //! CMD line arguments
         void addWindowModeOption();
 
+        //! CMD line arguments
+        void addWindowResetSizeOption();
+
         //! Window state
         Qt::WindowState getWindowState() const;
 
@@ -272,6 +275,7 @@ namespace BlackGui
         int m_minHeightChars = -1; //!< min. height characters (based on current font metrics)
         QCommandLineOption m_cmdWindowStateMinimized { "empty" }; //!< window state (minimized)
         QCommandLineOption m_cmdWindowMode { "empty" };           //!< window mode (flags: frameless ...)
+        QCommandLineOption m_cmdWindowSizeReset {"empty"};        //!< window size resizing
         CStyleSheetUtility m_styleSheetUtility {{}, this};        //!< style sheet utility
         bool m_uiSetupCompleted = false;                          //!< ui setup completed
         bool m_saveMainWidgetState = true;                        //!< save/restore main widget's state
diff --git a/src/swiftguistandard/swiftguistdapplication.cpp b/src/swiftguistandard/swiftguistdapplication.cpp
index 34394823f..2b5b29973 100644
--- a/src/swiftguistandard/swiftguistdapplication.cpp
+++ b/src/swiftguistandard/swiftguistdapplication.cpp
@@ -23,7 +23,6 @@ CSwiftGuiStdApplication::CSwiftGuiStdApplication() :
     CGuiApplication(CApplicationInfo::swiftPilotClientGui(), CApplicationInfo::PilotClientGui, CIcons::swift1024())
 {
     this->addParserOption(m_cmdFacadeMode);
-    this->addWindowModeOption();
     this->addDBusAddressOption();
     this->addVatlibOptions();
 }