fix interface conversion error
fix interface conversion error

ryanvz/rack,jrperritt/rack,brint/rack,rackspace/rack,annegentle/rack,brint/rack,nelsnelson/rack,jrperritt/rack,annegentle/rack,jarosser06/rack,pratikmallya/rack,jarosser06/rack,rackspace/rack,dolph/rack,dolph/rack,pratikmallya/rack,DonNateR/rack,nelsnelson/rack,ryanvz/rack,DonNateR/rack