diff --git a/setup.sh b/setup.sh
index eff45d14..2786c12f 100755
--- a/setup.sh
+++ b/setup.sh
@@ -54,7 +54,6 @@ cd firefox-source
 sed -i'' -e 's/os not in ("WINNT", "OSX", "Android")/os not in ("WINNT", "Android")/' ./build/moz.configure/pkg.configure # use pkg-config on macOS
 sed -i'' -e '/"WindowsDllMain.cpp"/d' ./mozglue/misc/moz.build # https://discourse.mozilla.org/t/105671, https://bugzilla.mozilla.org/show_bug.cgi?id=1751561
 sed -i'' -e '/"winheap.cpp"/d' ./memory/mozalloc/moz.build # https://bugzilla.mozilla.org/show_bug.cgi?id=1802675
-sed -i'' -e 's/"install-name-tool"/"install_name_tool"/' ./moz.configure # `install-name-tool` does not exist, but we have `install_name_tool`
 sed -i'' -e 's/bool Unbox/JS_PUBLIC_API bool Unbox/g' ./js/public/Class.h           # need to manually add JS_PUBLIC_API to js::Unbox until it gets fixed in Spidermonkey
 sed -i'' -e 's/bool js::Unbox/JS_PUBLIC_API bool js::Unbox/g' ./js/src/vm/JSObject.cpp  # same here
 sed -i'' -e 's/shared_lib = self._pretty_path(libdef.output_path, backend_file)/shared_lib = libdef.lib_name/' ./python/mozbuild/mozbuild/backend/recursivemake.py # would generate a Makefile to install the binary files from an invalid path prefix
@@ -68,9 +67,9 @@ cd js/src
 mkdir -p _build
 cd _build
 mkdir -p ../../../../_spidermonkey_install/
-$(if [[ "$OSTYPE" == "darwin"* ]]; then echo "LD=$(brew --prefix llvm@15)/bin/lld HOST_LD=$(brew --prefix llvm@15)/bin/lld"; fi) \
 ../configure --target=$(clang --print-target-triple) \
   --prefix=$(realpath $PWD/../../../../_spidermonkey_install) \
+  $(if [[ "$OSTYPE" == "darwin"* ]]; then echo "--with-toolchain-prefix=$(brew --prefix llvm@15)/bin/"; fi) \
   --with-intl-api \
   $(if [[ "$OSTYPE" != "msys"* ]]; then echo "--without-system-zlib"; fi) \
   --disable-debug-symbols \