1 files changed, 2 insertions, 1 deletions
diff --git a/ext/psych/lib/psych/nodes/node.rb b/ext/psych/lib/psych/nodes/node.rb
index 2a5573a2bd..0cefe44e44 100644
--- a/ext/psych/lib/psych/nodes/node.rb
+++ b/ext/psych/lib/psych/nodes/node.rb
@@ -40,13 +40,14 @@ module Psych
       # Convert this node to YAML.
       #
       # See also Psych::Visitors::Emitter
-      def to_yaml io = nil, options = {}
+      def yaml io = nil, options = {}
         real_io = io || StringIO.new(''.encode('utf-8'))
 
         Visitors::Emitter.new(real_io, options).accept self
         return real_io.string unless io
         io
       end
+      alias :to_yaml :yaml
     end
   end
 end