diff --git a/activesupport/test/core_ext/hash_ext_test.rb b/activesupport/test/core_ext/hash_ext_test.rb
index 37fdf1c0afb6968914b1c3504f3a5547e1139dce..94463cc311326e06a367adf9c30374671fe40cbb 100644
--- a/activesupport/test/core_ext/hash_ext_test.rb
+++ b/activesupport/test/core_ext/hash_ext_test.rb
@@ -848,7 +848,7 @@ def test_one_level_with_nils
     assert_equal "<person>", xml.first(8)
     assert xml.include?(%(<street>Paulina</street>))
     assert xml.include?(%(<name>David</name>))
-    assert xml.include?(%(<age nil="true"></age>))
+    assert xml.include?(%(<age nil="true"/>))
   end
 
   def test_one_level_with_skipping_types
@@ -856,7 +856,7 @@ def test_one_level_with_skipping_types
     assert_equal "<person>", xml.first(8)
     assert xml.include?(%(<street>Paulina</street>))
     assert xml.include?(%(<name>David</name>))
-    assert xml.include?(%(<age nil="true"></age>))
+    assert xml.include?(%(<age nil="true"/>))
   end
 
   def test_one_level_with_yielding