diff --git a/Library/Homebrew/requirements.rb b/Library/Homebrew/requirements.rb
index a8e7d66101..8dbcee0e26 100644
--- a/Library/Homebrew/requirements.rb
+++ b/Library/Homebrew/requirements.rb
@@ -77,6 +77,7 @@ class ArchRequirement < Requirement
   satisfy do
     case @arch
     when :x86_64 then MacOS.prefer_64_bit?
+    when :intel, :ppc then Hardware::CPU.type == @arch
     end
   end