diff --git a/Library/Homebrew/cmd/tap.rb b/Library/Homebrew/cmd/tap.rb
index 14542f1c54..6dc8c4da0a 100644
--- a/Library/Homebrew/cmd/tap.rb
+++ b/Library/Homebrew/cmd/tap.rb
@@ -85,6 +85,6 @@ module Homebrew
   end
 
   def check_private?(clone_target, user, repo)
-    not clone_target && private_tap?(user, repo)
+    !clone_target && private_tap?(user, repo)
   end
 end