diff --git a/test/syck/test_array.rb b/test/syck/test_array.rb
index 7ffa1b404f..59c9f469ce 100644
--- a/test/syck/test_array.rb
+++ b/test/syck/test_array.rb
@@ -4,9 +4,15 @@ require 'yaml'
 module Syck
   class TestArray < Test::Unit::TestCase
     def setup
+      @current_engine = YAML::ENGINE.yamler
+      YAML::ENGINE.yamler = 'syck'
       @list = [{ :a => 'b' }, 'foo']
     end
 
+    def teardown
+      YAML::ENGINE.yamler = @current_engine
+    end
+
     def test_to_yaml
       assert_equal @list, YAML.load(@list.to_yaml)
     end