diff --git a/Formula/exodriver.rb b/Formula/exodriver.rb
index 960564142f4..02f53e736ec 100644
--- a/Formula/exodriver.rb
+++ b/Formula/exodriver.rb
@@ -9,12 +9,10 @@ class Exodriver < Formula
 
   depends_on 'libusb'
 
-  def options
-    [["--universal", "Build a universal binary."]]
-  end
+  option :universal
 
   def install
-    ENV.universal_binary if ARGV.build_universal?
+    ENV.universal_binary if build.universal?
 
     cd 'liblabjackusb'
     system "make", "-f", "Makefile",