fix OSS build
fix OSS build

Summary: CTAD is failing for OSS

Reviewed By: vitaut

Differential Revision: D38285228

fbshipit-source-id: 077e6ca8b06c631303a31beb08002fae36ce6d5f

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift