diff --git a/src/QGCApplication.cc b/src/QGCApplication.cc
index af6d642c0d05b819a9051e228702feba51da6365..903f94fc8f8f13f6c319030f3ec64fad1bcb49ce 100644
--- a/src/QGCApplication.cc
+++ b/src/QGCApplication.cc
@@ -666,6 +666,8 @@ void QGCApplication::_destroySingletons(void)
     GenericFirmwarePlugin::_deleteSingleton();
     PX4FirmwarePlugin::_deleteSingleton();
     ArduCopterFirmwarePlugin::_deleteSingleton();
+    ArduPlaneFirmwarePlugin::_deleteSingleton();
+    ArduRoverFirmwarePlugin::_deleteSingleton();
     HomePositionManager::_deleteSingleton();
     FlightMapSettings::_deleteSingleton();
 }