Fix compilation problem.
Fix compilation problem.

cgvarela/passenger,clemensg/passenger,antek-drzewiecki/passenger,bf4/passenger,pkmiec/passenger,phusion/passenger,antek-drzewiecki/passenger,gravitystorm/passenger,erikogan/passenger,jawj/passenger,antek-drzewiecki/passenger,kewaunited/passenger,phusion/passenger,jawj/passenger,phusion/passenger,kewaunited/passenger,erikogan/passenger,bf4/passenger,openSUSE/passenger,gravitystorm/passenger,gravitystorm/passenger,kewaunited/passenger,clemensg/passenger,phusion/passenger,kewaunited/passenger,pkmiec/passenger,erikogan/passenger,gravitystorm/passenger,cgvarela/passenger,openSUSE/passenger,jawj/passenger,openSUSE/passenger,pkmiec/passenger,cgvarela/passenger,cgvarela/passenger,clemensg/passenger,phusion/passenger,kewaunited/passenger,gravitystorm/passenger,cgvarela/passenger,pkmiec/passenger,clemensg/passenger,jawj/passenger,clemensg/passenger,pkmiec/passenger,pkmiec/passenger,antek-drzewiecki/passenger,cgvarela/passenger,phusion/passenger,bf4/passenger,jawj/passenger,kewaunited/passenger,clemensg/passenger,bf4/passenger,antek-drzewiecki/passenger,kewaunited/passenger,pkmiec/passenger,openSUSE/passenger,openSUSE/passenger,erikogan/passenger,erikogan/passenger,gravitystorm/passenger,bf4/passenger,clemensg/passenger,jawj/passenger,antek-drzewiecki/passenger,jawj/passenger,clemensg/passenger,cgvarela/passenger,phusion/passenger,antek-drzewiecki/passenger,bf4/passenger,erikogan/passenger,openSUSE/passenger,phusion/passenger,kewaunited/passenger,bf4/passenger,cgvarela/passenger,antek-drzewiecki/passenger