diff --git a/Library/Homebrew/os/linux/hardware.rb b/Library/Homebrew/os/linux/hardware.rb
index 8c7f0d4018..9f16ffd1f1 100644
--- a/Library/Homebrew/os/linux/hardware.rb
+++ b/Library/Homebrew/os/linux/hardware.rb
@@ -2,6 +2,11 @@ module LinuxCPUs
   OPTIMIZATION_FLAGS = {}.freeze
   def optimization_flags; OPTIMIZATION_FLAGS; end
 
+  # Linux supports x86 only, and universal archs do not apply
+  def arch_32_bit; :i386; end
+  def arch_64_bit; :x86_64; end
+  def universal_archs; []; end
+
   def type
     @cpu_type ||= case `uname -m`
       when /i[3-6]86/, /x86_64/