diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 338b9f408d..91c379c908 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -1,5 +1,5 @@
 require 'hardware'
-require 'superenv'
+require 'extend/ENV/super'
 
 def superenv?
   return false if MacOS::Xcode.without_clt? && MacOS.sdk_path.nil?
diff --git a/Library/Homebrew/superenv.rb b/Library/Homebrew/extend/ENV/super.rb
similarity index 100%
rename from Library/Homebrew/superenv.rb
rename to Library/Homebrew/extend/ENV/super.rb