diff --git a/ci/travis_before_script_cpp.sh b/ci/travis_before_script_cpp.sh
index a1e407fe1f9..c7c3912950c 100755
--- a/ci/travis_before_script_cpp.sh
+++ b/ci/travis_before_script_cpp.sh
@@ -151,7 +151,6 @@ else
     if [ "$using_homebrew" = "yes" ]; then
 	# build against homebrew's boost if we're using it
 	export BOOST_ROOT=$(brew --prefix boost)
-	export LLVM_DIR=$(brew --prefix llvm@6)/lib/cmake/llvm
 	export THRIFT_HOME=$(brew --prefix thrift)
     fi
     cmake $CMAKE_COMMON_FLAGS \