diff --git a/Library/Homebrew/hardware.rb b/Library/Homebrew/hardware.rb
index 0949ec88d2..d7334667b5 100644
--- a/Library/Homebrew/hardware.rb
+++ b/Library/Homebrew/hardware.rb
@@ -212,6 +212,7 @@ module Hardware
       when 4 then "quad"
       when 6 then "hexa"
       when 8 then "octa"
+      when 10 then "deca"
       when 12 then "dodeca"
       else
         Hardware::CPU.cores.to_s