diff --git a/Library/Homebrew/requirements/arch_requirement.rb b/Library/Homebrew/requirements/arch_requirement.rb
index a39749a56d..9a28daa46d 100644
--- a/Library/Homebrew/requirements/arch_requirement.rb
+++ b/Library/Homebrew/requirements/arch_requirement.rb
@@ -18,4 +18,8 @@ class ArchRequirement < Requirement
   def message
     "This formula requires an #{@arch} architecture."
   end
+
+  def display_s
+    "#{@arch} architecture"
+  end
 end