diff --git a/test/test_language.rb b/test/test_language.rb
index 3ca231b5..aacc1e84 100644
--- a/test/test_language.rb
+++ b/test/test_language.rb
@@ -191,7 +191,6 @@ class TestLanguage < Test::Unit::TestCase
 
   def test_markup
     assert_equal :markup, Language['HTML'].type
-    assert_equal :markup, Language['YAML'].type
   end
 
   def test_other