Hotfix the OSS build error
Hotfix the OSS build error

Summary: fixing master

Reviewed By: ajtulloch

Differential Revision: D5724857

fbshipit-source-id: da7b93e181cf496d59364122234a87edd6775a82

xzturn/caffe2,sf-wind/caffe2,caffe2/caffe2,pietern/caffe2,davinwang/caffe2,davinwang/caffe2,xzturn/caffe2,pietern/caffe2,Yangqing/caffe2,davinwang/caffe2,sf-wind/caffe2,sf-wind/caffe2,sf-wind/caffe2,davinwang/caffe2,Yangqing/caffe2,pietern/caffe2,davinwang/caffe2,pietern/caffe2,Yangqing/caffe2,xzturn/caffe2,xzturn/caffe2,pietern/caffe2,Yangqing/caffe2,xzturn/caffe2,Yangqing/caffe2,sf-wind/caffe2