diff --git a/Library/Homebrew/test/hardware/cpu_spec.rb b/Library/Homebrew/test/hardware/cpu_spec.rb
index 0a6f2101cc..035915d11a 100644
--- a/Library/Homebrew/test/hardware/cpu_spec.rb
+++ b/Library/Homebrew/test/hardware/cpu_spec.rb
@@ -21,6 +21,7 @@ describe Hardware::CPU do
   describe "::family" do
     let(:cpu_families) {
       [
+        :arm,
         :arrandale,
         :atom,
         :broadwell,