diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..e3908c9
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,32 @@
+GIT
+  remote: https://github.com/colszowka/simplecov
+  revision: d4ed33b3876fe6f1e808bed60e134e2f8adf6267
+  specs:
+    simplecov (0.7.1)
+      multi_json (~> 1.0)
+      simplecov-html (~> 0.7.1)
+
+PATH
+  remote: .
+  specs:
+    simplecov-json (0.1.3)
+      json
+      simplecov
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    json (1.7.7)
+    metaclass (0.0.1)
+    mocha (0.12.7)
+      metaclass (~> 0.0.1)
+    multi_json (1.3.6)
+    simplecov-html (0.7.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  mocha
+  simplecov!
+  simplecov-json!
diff --git a/lib/simplecov-json.rb b/lib/simplecov-json.rb
index cad43ce..e73620c 100644
--- a/lib/simplecov-json.rb
+++ b/lib/simplecov-json.rb
@@ -8,17 +8,20 @@ class SimpleCov::Formatter::JSONFormatter
     data[:timestamp] = result.created_at.to_i
     data[:command_name] = result.command_name
     data[:files] = []
-    result.original_result.each do |filename, coverage|
-      next unless result.filenames.include? filename
-      
+    result.files.each do |sourceFile|
+      next unless result.filenames.include? sourceFile.filename
       data[:files] << {
-        filename: filename,
-        coverage: coverage
+        filename: sourceFile.filename,
+        covered_percent: sourceFile.covered_percent,
+        coverage: sourceFile.coverage,
+        covered_strength: sourceFile.covered_strength.nan? ? 0.0 : sourceFile.covered_strength, 
+        covered_lines: sourceFile.covered_lines.count, 
+        lines_of_code: sourceFile.lines_of_code, 
       }
     end
     data[:metrics] = {
       covered_percent: result.covered_percent,
-      covered_strength: result.covered_strength,
+      covered_strength: result.covered_strength.nan? ? 0.0 : result.covered_strength,
       covered_lines: result.covered_lines,
       total_lines: result.total_lines
     }
diff --git a/simplecov-json.gemspec b/simplecov-json.gemspec
index e76f0bd..2ef84f8 100644
--- a/simplecov-json.gemspec
+++ b/simplecov-json.gemspec
@@ -3,7 +3,7 @@ $:.push File.expand_path("../lib", __FILE__)
 
 Gem::Specification.new do |s|
   s.name        = "simplecov-json"
-  s.version     = '0.1.2'
+  s.version     = '0.1.3'
   s.platform    = Gem::Platform::RUBY
   s.authors     = ["Vicent Llongo"]
   s.email       = ["villosil@gmail.com"]
diff --git a/test/test_simplecov_json.rb b/test/test_simplecov_json.rb
index ff2c6ac..0de7954 100644
--- a/test/test_simplecov_json.rb
+++ b/test/test_simplecov_json.rb
@@ -4,16 +4,35 @@ class TestSimpleCovHtml < Test::Unit::TestCase
   def test_format
     formatter = SimpleCov::Formatter::JSONFormatter.new
     result = mock()
+    foo = mock()
+    bar = mock()
     created_at = DateTime.now.to_s
-    
     result.expects(:created_at).returns(created_at)
     result.expects(:command_name).returns('RSpec')
-    result.expects(:original_result).returns({
-      '/lib/foo.rb' => [1, nil, 0, 0, nil, 1, nil],
-      '/lib/bar.rb' => [nil, 1, nil, 1, 1, 1, 0, 0, nil, 1, nil],
-      '/test/test.rb' => [nil, 1, 1, 1, 1]
-    })
-    result.expects(:filenames).returns(['/lib/foo.rb', '/lib/bar.rb'])
+    
+    fooLineList = mock()
+    fooLineList.expects(:count).returns(2)
+
+    barLineList = mock()
+    barLineList.expects(:count).returns(5)
+
+    foo.expects(:filename).returns('/lib/foo.rb')
+    foo.expects(:filename).returns('/lib/foo.rb')
+    foo.expects(:covered_percent).returns(50.0)
+    foo.expects(:coverage).returns([1, nil, 0, 0, nil, 1, nil])
+    foo.expects(:covered_strength).returns(0.50)
+    foo.expects(:covered_lines).returns(fooLineList)
+    foo.expects(:lines_of_code).returns(4)
+    
+    bar.expects(:filename).returns('/lib/bar.rb')
+    bar.expects(:filename).returns('/lib/bar.rb')
+    bar.expects(:covered_percent).returns(71.42)
+    bar.expects(:coverage).returns([nil, 1, nil, 1, 1, 1, 0, 0, nil, 1, nil])
+    bar.expects(:covered_strength).returns(0.71)
+    bar.expects(:covered_lines).returns(barLineList)
+    bar.expects(:lines_of_code).returns(7)
+
+    result.expects(:files).returns([foo, bar])
     result.expects(:filenames).returns(['/lib/foo.rb', '/lib/bar.rb'])
     result.expects(:filenames).returns(['/lib/foo.rb', '/lib/bar.rb'])
     result.expects(:covered_percent).returns(73.33)
@@ -26,12 +45,31 @@ class TestSimpleCovHtml < Test::Unit::TestCase
     result.expects(:total_lines).returns(15)
     result.expects(:covered_percent).returns(73.33)
 
+
+# filename
+# covered_percent
+# coverage
+# covered_strength
+# covered_lines
+# lines_of_code
     assert_equal(formatter.format(result), {
       'timestamp' => created_at.to_i, 
       'command_name' => 'RSpec', 
       'files' => [
-        {'filename' => '/lib/foo.rb', 'coverage' => [1, nil, 0, 0, nil, 1, nil]},
-        {'filename' => '/lib/bar.rb', 'coverage' => [nil, 1, nil, 1, 1, 1, 0, 0, nil, 1, nil]},
+        {'filename' => '/lib/foo.rb',
+          'covered_percent' => 50.0,
+          'coverage' => [1, nil, 0, 0, nil, 1, nil],
+          'covered_strength' => 0.50,
+          'covered_lines' => 2,
+          'lines_of_code' => 4
+        },
+        {'filename' => '/lib/bar.rb',
+          'covered_percent' => 71.42,
+          'coverage' => [nil, 1, nil, 1, 1, 1, 0, 0, nil, 1, nil],
+          'covered_strength' => 0.71,
+          'covered_lines' => 5,
+          'lines_of_code' => 7
+        },
       ],
       'metrics' => {
         'covered_percent' => 73.33,