diff --git a/bin/brew b/bin/brew
index 3e886d9e7c..ffecdfd965 100755
--- a/bin/brew
+++ b/bin/brew
@@ -69,6 +69,8 @@ EOS
 end
 
 def dump_build_env env
+  puts "\"--use-llvm\" was specified" if ARGV.include? '--use-llvm'
+
   %w[CC CXX LD CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MAKEFLAGS HOMEBREW_USE_LLVM].each do |k|
     puts "#{k}: #{env[k]}"
   end