diff --git a/Library/Homebrew/bottles.rb b/Library/Homebrew/bottles.rb
index 33a4f859d9..a656e43688 100644
--- a/Library/Homebrew/bottles.rb
+++ b/Library/Homebrew/bottles.rb
@@ -28,7 +28,6 @@ def install_bottle? f, warn=false
 end
 
 def built_as_bottle? f
-  f = Formula.factory f unless f.kind_of? Formula
   return false unless f.installed?
   tab = Tab.for_keg(f.installed_prefix)
   # Need to still use the old "built_bottle" until all bottles are updated.