diff --git a/src/plugins/simulator/flightgear/simulatorflightgear.cpp b/src/plugins/simulator/flightgear/simulatorflightgear.cpp
index 12deb7482..fff141794 100644
--- a/src/plugins/simulator/flightgear/simulatorflightgear.cpp
+++ b/src/plugins/simulator/flightgear/simulatorflightgear.cpp
@@ -898,6 +898,7 @@ namespace BlackSimPlugin
 
         bool CSimulatorFlightgear::canAddAircraft() const
         {
+            if (this->getModelSet().isEmpty()) { return false; }
             if (m_addingInProgressAircraft.isEmpty()) { return true; }
 
             // check