Fix compilation error.
Fix compilation error.

neobrain/aeson,timmytofu/aeson,dmjio/aeson,jkarni/aeson,23Skidoo/aeson,beni55/aeson,roelvandijk/aeson,roelvandijk/aeson,neobrain/aeson,aelve/json-x,SeanRBurton/aeson,JPMoresmau/aeson,bwo/aeson,sol/aeson,lykahb/aeson,abbradar/aeson,sol/aeson,sol/aeson,nurpax/aeson,plaprade/aeson