fix variable reference in setup (thanks to Jeroen for catching)
fix variable reference in setup (thanks to Jeroen for catching)

jeroenh/OpenNSA,jab1982/opennsa,jab1982/opennsa,NORDUnet/opennsa,NORDUnet/opennsa,jeroenh/OpenNSA,NORDUnet/opennsa,jeroenh/OpenNSA