diff --git a/src/Airports/dynamicloader.cxx b/src/Airports/dynamicloader.cxx index 0e5e35203..3f3c37d0a 100644 --- a/src/Airports/dynamicloader.cxx +++ b/src/Airports/dynamicloader.cxx @@ -123,7 +123,7 @@ void FGGroundNetXMLLoader::startParking(const XMLAttributes &atts) else if (attname == "pushBackRoute") { const string attrVal = atts.getValue(i); try { - if (attrVal == "None") { + if (attrVal.empty() || (attrVal == "None")) { pushBackRoute = -2; } else { pushBackRoute = simgear::strutils::readNonNegativeInt<int>(attrVal);