diff --git a/Library/Contributions/examples/brew-missing.rb b/Library/Contributions/examples/brew-missing.rb
index 5beca3c92b..2fac4186d4 100755
--- a/Library/Contributions/examples/brew-missing.rb
+++ b/Library/Contributions/examples/brew-missing.rb
@@ -12,7 +12,7 @@ end
 
 def main
   # Names of outdated brews; they count as installed.
-  outdated = Homebrew.outdated_brews.collect{ |b| b[1] }
+  outdated = Homebrew.outdated_brews.collect{ |b| b.name }
 
   formuale_to_check = ARGV.formulae rescue installed_brews