diff --git a/src/QGCApplication.cc b/src/QGCApplication.cc
index 44a5498..3db7b0f 100644
--- a/src/QGCApplication.cc
+++ b/src/QGCApplication.cc
@@ -158,9 +158,6 @@ QGCApplication::QGCApplication(int &argc, char* argv[], bool unitTesting)
     , _logOutput            (false)
     , _fakeMobile           (false)
     , _settingsUpgraded     (false)
-#ifdef QT_DEBUG
-    , _testHighDPI          (false)
-#endif
     , _toolbox              (nullptr)
     , _bluetoothAvailable   (false)
 {
@@ -239,9 +236,6 @@ QGCApplication::QGCApplication(int &argc, char* argv[], bool unitTesting)
         { "--logging",          &logging,               &loggingOptions },
         { "--fake-mobile",      &_fakeMobile,           nullptr },
         { "--log-output",       &_logOutput,            nullptr },
-    #ifdef QT_DEBUG
-        { "--test-high-dpi",    &_testHighDPI,          nullptr },
-    #endif
         // Add additional command line option flags here
     };
 
diff --git a/src/QGCApplication.h b/src/QGCApplication.h
index a78c6ea..5c86cd5 100644
--- a/src/QGCApplication.h
+++ b/src/QGCApplication.h
@@ -85,10 +85,6 @@ public:
     /// @return true: Fake ui into showing mobile interface
     bool fakeMobile(void) { return _fakeMobile; }
 
-#ifdef QT_DEBUG
-    bool testHighDPI(void) { return _testHighDPI; }
-#endif
-
     // Still working on getting rid of this and using dependency injection instead for everything
     QGCToolbox* toolbox(void) { return _toolbox; }
 
@@ -171,10 +167,6 @@ private:
     bool				_fakeMobile;                                        ///< true: Fake ui into displaying mobile interface
     bool                _settingsUpgraded;                                  ///< true: Settings format has been upgrade to new version
 
-#ifdef QT_DEBUG
-    bool _testHighDPI;  ///< true: double fonts sizes for simulating high dpi devices
-#endif
-
     QGCToolbox* _toolbox;
 
     QTranslator _QGCTranslator;
diff --git a/src/QmlControls/ScreenToolsController.h b/src/QmlControls/ScreenToolsController.h
index 670b998..b9fc5e0 100644
--- a/src/QmlControls/ScreenToolsController.h
+++ b/src/QmlControls/ScreenToolsController.h
@@ -32,7 +32,6 @@ public:
     Q_PROPERTY(bool     isAndroid           READ isAndroid       CONSTANT)
     Q_PROPERTY(bool     isiOS               READ isiOS           CONSTANT)
     Q_PROPERTY(bool     isMobile            READ isMobile        CONSTANT)
-    Q_PROPERTY(bool     testHighDPI         READ testHighDPI     CONSTANT)
     Q_PROPERTY(bool     isDebug             READ isDebug         CONSTANT)
     Q_PROPERTY(bool     isMacOS             READ isMacOS         CONSTANT)
     Q_PROPERTY(bool     isLinux             READ isLinux         CONSTANT)
@@ -89,11 +88,9 @@ public:
 #endif
 
 #ifdef QT_DEBUG
-    bool testHighDPI            () { return qgcApp()->testHighDPI(); }
     bool isDebug                () { return true; }
 #else
     bool isDebug                () { return false; }
-    bool testHighDPI            () { return false; }
 #endif
 
     QString  iOSDevice          () const;