diff --git a/bin/brew b/bin/brew
index ffecdfd965..8668b69e73 100755
--- a/bin/brew
+++ b/bin/brew
@@ -71,7 +71,7 @@ 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|
+  %w[CC CXX LD CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MAKEFLAGS PKG_CONFIG_PATH HOMEBREW_USE_LLVM].each do |k|
     puts "#{k}: #{env[k]}"
   end
 end