diff --git a/Library/Contributions/example-formula.rb b/Library/Contributions/example-formula.rb
index 6916ed1522..f8de5aae26 100644
--- a/Library/Contributions/example-formula.rb
+++ b/Library/Contributions/example-formula.rb
@@ -254,7 +254,7 @@ class ExampleFormula < Formula
     args << "--i-want-spam" if build.include? "enable-spam"
     args << "--qt-gui" if build.with? "qt" # "--with-qt" ==> build.with? "qt"
     args << "--some-new-stuff" if build.head? # if head is used instead of url.
-    args << "--universal-binray" if build.universal?
+    args << "--universal-binary" if build.universal?
 
     # The `build.with?` and `build.without?` are smart enough to do the
     # right thing™ with respect to defaults defined via `:optional` and