diff --git a/Library/Homebrew/test/rubocops/formula_desc_cop_spec.rb b/Library/Homebrew/test/rubocops/formula_desc_cop_spec.rb
index cc838a6bfc..895c48aa54 100644
--- a/Library/Homebrew/test/rubocops/formula_desc_cop_spec.rb
+++ b/Library/Homebrew/test/rubocops/formula_desc_cop_spec.rb
@@ -65,7 +65,7 @@ describe RuboCop::Cop::FormulaAuditStrict::Desc do
       expect_offense(<<~RUBY, "/homebrew-core/Formula/foo.rb")
         class Foo < Formula
           url 'http://example.com/foo-1.0.tgz'
-          desc 'An '
+          desc 'An aardvark'
                 ^^^ Description shouldn\'t start with an indefinite article i.e. \"An\"
         end
       RUBY