diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index 9d385fc514..162385e60d 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -57,6 +57,7 @@ class Formulary
     class_name = name.capitalize
     class_name.gsub!(/[-_.\s]([a-zA-Z0-9])/) { $1.upcase }
     class_name.tr!("+", "x")
+    class_name.gsub!(/\b@\b/, "AT")
     class_name
   end