diff --git a/lib/sof/hash.rb b/lib/sof/hash.rb
index 6ab77b59..14e88aec 100644
--- a/lib/sof/hash.rb
+++ b/lib/sof/hash.rb
@@ -1,9 +1,12 @@
 Hash.class_eval do
   def to_sof_node(members , level)
-    node = Sof::NodeList.new(nil)
+    node = Sof::NodeList.new()
     each do |key , object|
       k = key.to_sof() + ": "
       v = members.to_sof_node( object )
+      v.data = "#{k}#{v.data}"
+      node.add v
     end
+    node
   end
 end
diff --git a/lib/sof/node.rb b/lib/sof/node.rb
index 059ebf58..a3606631 100644
--- a/lib/sof/node.rb
+++ b/lib/sof/node.rb
@@ -10,17 +10,18 @@ module Sof
   end
   
   class SimpleNode < Node
-    def initialize head
-      @head = head
+    def initialize data
+      @data = data
     end
-    attr_accessor :head
+    attr_accessor :data
     def out io , level
-      io.write(head) if head
+      io.write(data) if data
     end
   end
   
-  class NodeList < Node
+  class NodeList < SimpleNode
     def initialize
+      super(nil)
       @children = []
     end
     attr_accessor  :children
@@ -31,6 +32,7 @@ module Sof
     end
 
     def out io , level = 0
+      super
       return if @children.empty?
       first = @children.first
       io.write "-"
diff --git a/test/sof.rb b/test/sof.rb
index 4607b777..a4d29950 100644
--- a/test/sof.rb
+++ b/test/sof.rb
@@ -46,20 +46,16 @@ class BasicSof < MiniTest::Test
     out = Sof::Writer.write([true, 1 , [true , 12 , ObjectWithAttributes.new]])
     assert_equal "-true\n-1\n--true\n -12\n -#{OBJECT_STRING}" , out
   end
-  def ttest_simple_hash
+  def test_simple_hash
     out = Sof::Writer.write({ one: 1 , tru: true })
-    puts out
-    assert_equal "-:one 1\n-:tru true\n" , out
+    assert_equal "-:one: 1\n-:tru: true" , out
   end
-  def ttest_hash_object
+  def test_hash_object
     out = Sof::Writer.write({ one: 1 , two: ObjectWithAttributes.new })
-    assert_equal "-:one 1\n-:two #{OBJECT_STRING}\n" , out
+    assert_equal "-:one: 1\n-:two: #{OBJECT_STRING}" , out
   end
-  def ttest_hash_array
+  def test_hash_array
     out = Sof::Writer.write({ one: [1 , ObjectWithAttributes.new] , two: true })
-    puts "\n#{out}"
-    s = { :one => [1 , ObjectWithAttributes.new] , :two => true }.to_yaml
-    puts s
-    assert_equal "-:one 1\n-:two #{OBJECT_STRING}\n\n" , out
+    assert_equal "-:one: -1\n -#{OBJECT_STRING}\n-:two: true" , out
   end
 end
\ No newline at end of file