diff --git a/test/test_text_check.rb b/test/test_text_check.rb
index 56d00440..08cacbdb 100644
--- a/test/test_text_check.rb
+++ b/test/test_text_check.rb
@@ -59,6 +59,10 @@ def test_lt_mix
         assert_check_failed("ab<cd", "<")
       end
 
+      def test_reference_empty
+        assert_check_failed("&;", "&")
+      end
+
       def test_entity_reference_missing_colon
         assert_check_failed("&amp", "&")
       end