diff --git a/Library/Homebrew/rubocops/formula_desc_cop.rb b/Library/Homebrew/rubocops/formula_desc_cop.rb
index 619a0cda4b..2b613c9b49 100644
--- a/Library/Homebrew/rubocops/formula_desc_cop.rb
+++ b/Library/Homebrew/rubocops/formula_desc_cop.rb
@@ -45,6 +45,7 @@ module RuboCop
           malloc
           ooc
           preexec
+          x86
           xUnit
         ].freeze