diff --git a/build/fbcode_builder/manifests/boost b/build/fbcode_builder/manifests/boost
index 4b254e308ab2a..f051cfd1b0341 100644
--- a/build/fbcode_builder/manifests/boost
+++ b/build/fbcode_builder/manifests/boost
@@ -81,6 +81,3 @@ builder = boost
 --with-timer
 --with-type_erasure
 --with-wave
-
-[b2.args.os=darwin]
-toolset=clang