fixing debug-only check
fixing debug-only check

Summary: Not being clowny.

Reviewed By: beicy

Differential Revision: D35956264

fbshipit-source-id: 236168433625707f05a6f3f005f39eaf0eb9b7ed

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex