Fix missing mixin
Fix missing mixin

gpbl/isomorphic500,jxnblk/isomorphic500,elfinxx/isomorphic500,geekyme/isomorphic-react-template,pheadra/isomorphic500,jeffhandley/oredev-sessions,devypt/isomorphic500,veeracs/isomorphic500,jonathanconway/MovieBrowser,davedx/isomorphic-react-template,jmfurlott/isomorphic500,beeva-davidgarcia/isomorphic500,w01fgang/isomorphic500,fustic/isomorphic500,davedx/isomorphic-react-template,dmitrif/isomorphic500,geekyme/isomorphic-react-template,ryankanno/isomorphic500,saitodisse/isomorphic500