diff --git a/cmd/brewer-tap-content-info.rb b/cmd/brewer-tap-content-info.rb
index d2720a3..a6a6d75 100755
--- a/cmd/brewer-tap-content-info.rb
+++ b/cmd/brewer-tap-content-info.rb
@@ -32,6 +32,8 @@ module Homebrew
     casks = []
     
     Tap.each do |tap|
+      next if ["homebrew/core", "homebrew/cask"].include?(tap.name)
+      
       unless args.cask?
         tap.formula_files.each do |formula_file|
           formulae << Formulary.factory(formula_file)