diff --git a/src/FirmwarePlugin/FirmwarePlugin.cc b/src/FirmwarePlugin/FirmwarePlugin.cc
index aa23c1f..4e4d653 100644
--- a/src/FirmwarePlugin/FirmwarePlugin.cc
+++ b/src/FirmwarePlugin/FirmwarePlugin.cc
@@ -270,6 +270,7 @@ void FirmwarePlugin::guidedModeGotoLocation(Vehicle* vehicle, const QGeoCoordina
 void FirmwarePlugin::guidedModeChangeAltitude(Vehicle*, double, bool pauseVehicle)
 {
     // Not supported by generic vehicle
+    Q_UNUSED(pauseVehicle);
     qgcApp()->showAppMessage(guided_mode_not_supported_by_vehicle);
 }
 
diff --git a/src/FirmwarePlugin/FirmwarePlugin.h b/src/FirmwarePlugin/FirmwarePlugin.h
index b0e7098..d94c0b1 100644
--- a/src/FirmwarePlugin/FirmwarePlugin.h
+++ b/src/FirmwarePlugin/FirmwarePlugin.h
@@ -331,7 +331,7 @@ public:
     static const QString px4FollowMeFlightMode;
 
     // gets hobbs meter from autopilot. This should be reimplmeented for each firmware
-    virtual QString getHobbsMeter(Vehicle* vehicle) { return "Not Supported"; }
+    virtual QString getHobbsMeter(Vehicle* vehicle) { Q_UNUSED(vehicle); return "Not Supported"; }
 
 signals:
     void toolIndicatorsChanged(void);