diff --git a/Library/Homebrew/extend/os/mac/extend/ENV/super.rb b/Library/Homebrew/extend/os/mac/extend/ENV/super.rb
index 456a985239..e58a10e577 100644
--- a/Library/Homebrew/extend/os/mac/extend/ENV/super.rb
+++ b/Library/Homebrew/extend/os/mac/extend/ENV/super.rb
@@ -98,8 +98,6 @@ module Superenv
 
   def determine_cccfg
     s = +""
-    # Fix issue with sed barfing on unicode characters on Mountain Lion
-    s << "s"
     # Fix issue with >= Mountain Lion apr-1-config having broken paths
     s << "a"
     s.freeze