diff --git a/CHANGES.md b/CHANGES.md
index dc70be4..5dd2cb8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,7 @@
+## v1.4.1 2015-07-06 22:36:25+0300
+
+* Added stdout to output when Typescript compilation error occurs
+
 ## v1.1.1 2015-04-19 15:40:00+0900
 
 * Use capture3 instead of popen3 to handle tsc I/O.
diff --git a/lib/typescript-node.rb b/lib/typescript-node.rb
index 5c4dabd..6d37807 100644
--- a/lib/typescript-node.rb
+++ b/lib/typescript-node.rb
@@ -1,9 +1,9 @@
-require "tmpdir"
-require "tempfile"
-require "typescript-src"
-require "typescript-node/version"
-require "typescript-node/compile_result"
-require "open3"
+require 'tmpdir'
+require 'tempfile'
+require 'typescript-src'
+require 'typescript-node/version'
+require 'typescript-node/compile_result'
+require 'open3'
 
 module TypeScript
   module Node
@@ -23,15 +23,15 @@ def tsc(*args)
       # @return [TypeScript::Node::CompileResult] compile result
       def compile_file(source_file, *tsc_options)
         Dir.mktmpdir do |output_dir|
-          output_file = File.join(output_dir, "out.js")
+          output_file = File.join(output_dir, 'out.js')
           stdout, stderr, exit_status = tsc(*tsc_options, '--out', output_file, source_file)
 
           output_js = File.exists?(output_file) ? File.read(output_file) : nil
           CompileResult.new(
-            output_js,
-            exit_status,
-            stdout,
-            stderr,
+              output_js,
+              exit_status,
+              stdout,
+              stderr,
           )
         end
       end
@@ -40,7 +40,7 @@ def compile_file(source_file, *tsc_options)
       # @param [String] source TypeScript to be compiled
       # @return [String] Resulted JavaScript
       def compile(source, *tsc_options)
-        js_file = Tempfile.new(["typescript-node", ".ts"])
+        js_file = Tempfile.new(%w(typescript-node .ts))
         begin
           js_file.write(source)
           js_file.close
@@ -48,7 +48,7 @@ def compile(source, *tsc_options)
           if result.success?
             result.js
           else
-            raise result.stderr
+            raise result.stderr + result.stdout
           end
         ensure
           js_file.unlink
@@ -58,11 +58,11 @@ def compile(source, *tsc_options)
       # node command
       # TS_NODE environmental variable is used when it is set.
       def node
-        ENV["TS_NODE"] || "node"
+        ENV['TS_NODE'] || 'node'
       end
 
       def locate_executable(cmd)
-        if RbConfig::CONFIG["host_os"] =~ /mswin|mingw/ && File.extname(cmd) == ""
+        if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ && File.extname(cmd) == ""
           cmd << ".exe"
         end
 
@@ -79,12 +79,11 @@ def locate_executable(cmd)
 
       def check_node
         unless locate_executable(node)
-          raise "typescript-node requires node command, but it's not found. Please install it. " +
-              "Set TS_NODE environmental variable If you want to use node command in non-standard path."
+          raise "typescript-node requires node command, but it's not found. Please install it. Set TS_NODE environmental variable If you want to use node command in non-standard path."
         end
       end
     end
   end
 end
 
-TypeScript::Node.check_node
+TypeScript::Node.check_node
\ No newline at end of file
diff --git a/lib/typescript-node/version.rb b/lib/typescript-node/version.rb
index a5db653..a5c409b 100644
--- a/lib/typescript-node/version.rb
+++ b/lib/typescript-node/version.rb
@@ -1,5 +1,5 @@
 module TypeScript
   module Node
-    VERSION = '1.1.1'
+    VERSION = '1.4.1'
   end
 end
diff --git a/test/test_typescript-node.rb b/test/test_typescript-node.rb
index 2e23783..335d4c2 100644
--- a/test/test_typescript-node.rb
+++ b/test/test_typescript-node.rb
@@ -28,8 +28,7 @@ def test_compile_file_in_failure
 
     assert { subject.exit_status != 0 }
     assert { !subject.success? }
-    assert { subject.stdout == '' }
-    assert { subject.stderr != '' }
+    assert { subject.stdout != '' || subject.stderr != '' }
   end
 
   def test_compile_file_with_es5
diff --git a/typescript-node.gemspec b/typescript-node.gemspec
index 262b8ee..7789fc3 100644
--- a/typescript-node.gemspec
+++ b/typescript-node.gemspec
@@ -2,13 +2,13 @@
 require File.expand_path('../lib/typescript-node/version', __FILE__)
 
 Gem::Specification.new do |gem|
-  gem.name          = "typescript-node"
+  gem.name          = 'typescript-node'
 
-  gem.authors       = ["KAWACHI Takashi"]
-  gem.email         = ["tkawachi@gmail.com"]
+  gem.authors       = ['KAWACHI Takashi']
+  gem.email         = ['tkawachi@gmail.com']
   gem.description   = %q{TypeScript ruby interface using Node.js}
   gem.summary       = gem.description
-  gem.homepage      = "https://github.com/typescript-ruby/typescript-node-ruby"
+  gem.homepage      = 'https://github.com/typescript-ruby/typescript-node-ruby'
 
   gem.files         = `git ls-files`.split($\)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
@@ -16,8 +16,8 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.version       = TypeScript::Node::VERSION
 
-  gem.add_dependency 'typescript-src', '~> 1.0.1'
+  gem.add_dependency 'typescript-src', '~> 1.4.1'
   gem.add_development_dependency 'rake'
 
-  gem.required_ruby_version = ">= 1.9.3"
+  gem.required_ruby_version = '>= 1.9.3'
 end