--- a/tools/osx/BUILD
+++ b/tools/osx/BUILD
@@ -28,8 +28,8 @@ exports_files([
 
 DARWIN_XCODE_LOCATOR_COMPILE_COMMAND = """
   /usr/bin/xcrun --sdk macosx clang -mmacosx-version-min=10.13 -fobjc-arc -framework CoreServices \
-      -framework Foundation -arch arm64 -arch x86_64 -Wl,-no_adhoc_codesign -Wl,-no_uuid -o $@ $< && \
+      -framework Foundation                          -Wl,-no_adhoc_codesign -Wl,-no_uuid -o $@ $< && \
-  env -i codesign --identifier $@ --force --sign - $@
+  /usr/bin/env -i /usr/bin/codesign --identifier $@ --force --sign - $@
 """
 
 genrule(