Fix typo

1 files changed, 1 insertions, 1 deletions

diff --git a/Library/Homebrew/extend/ENV/super.rb b/Library/Homebrew/extend/ENV/super.rb
index df305d175..d8e9da9bc 100644
--- a/Library/Homebrew/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/ENV/super.rb
@@ -46,7 +46,7 @@ module Superenv
   def reset
     %w{CC CXX OBJC OBJCXX CPP MAKE LD LDSHARED
       CFLAGS CXXFLAGS OBJCFLAGS OBJCXXFLAGS LDFLAGS CPPFLAGS
-      MACOS_DEPLOYMENT_TARGET SDKROOT
+      MACOSX_DEPLOYMENT_TARGET SDKROOT
       CMAKE_PREFIX_PATH CMAKE_INCLUDE_PATH CMAKE_FRAMEWORK_PATH
       CPATH C_INCLUDE_PATH CPLUS_INCLUDE_PATH OBJC_INCLUDE_PATH}.
       each{ |x| delete(x) }