diff --git a/lib/babelish/csv2android.rb b/lib/babelish/csv2android.rb
index 5d13f08..155abfc 100644
--- a/lib/babelish/csv2android.rb
+++ b/lib/babelish/csv2android.rb
@@ -7,6 +7,7 @@ def initialize(filename, langs, args = {})
 
       @file_path = args[:output_dir].to_s
       @output_basename = args[:output_basename].to_s
+      @default_lang = args[:default_lang].to_s
     end
 
     def language_filepaths(language)
@@ -14,7 +15,7 @@ def language_filepaths(language)
       output_name = "strings.xml"
       output_name = "#{@output_basename}.xml" unless @output_basename.empty?
       region = language.region.to_s.empty? ? "" : "-r#{language.region}"
-      filepath = Pathname.new(@file_path) + "values-#{language.code}#{region}" + output_name
+      filepath = Pathname.new(@file_path) + (default_lang != language.language_id ? "values-#{language.code}#{region}" : "values") + output_name
       return filepath ? [filepath] : []
     end
 
diff --git a/lib/babelish/language.rb b/lib/babelish/language.rb
index 4a19511..944bb08 100644
--- a/lib/babelish/language.rb
+++ b/lib/babelish/language.rb
@@ -1,6 +1,6 @@
 module Babelish
   class Language
-    attr_accessor :name, :content, :code, :regions
+    attr_accessor :name, :content, :code, :regions, :language_id
 
     def initialize(name, content = {})
       @name = name
@@ -16,6 +16,7 @@ def add_language_id(language_id)
       @code ||= code
       @regions ||= []
       @regions << region if region
+      @language_id = language_id
     end
 
     def region
diff --git a/test/babelish/commands/test_command_csv2android.rb b/test/babelish/commands/test_command_csv2android.rb
index f76108c..f5903ad 100644
--- a/test/babelish/commands/test_command_csv2android.rb
+++ b/test/babelish/commands/test_command_csv2android.rb
@@ -31,6 +31,40 @@ def test_csv2android_with_multiple_2_languages_with_region
     system("rm -rf ./values-fr/")
   end
 
+   def test_csv2android_with_default_language
+    options = {
+        :filename => "test/data/test_data_multiple_langs.csv",
+        :langs => {"English" => "en", "French" => "fr"},
+        :default_lang => "en"
+    }
+    Commandline.new([], options).csv2android
+
+    assert File.exist?("./values/strings.xml")
+    assert File.exist?("./values-fr/strings.xml")
+    assert !File.exist?("./values-en/strings.xml")
+
+    # clean up
+    system("rm -rf ./values/")
+    system("rm -rf ./values-fr/")
+  end
+
+   def test_csv2android_with_default_language_and_region
+    options = {
+        :filename => "test/data/test_data_multiple_langs.csv",
+        :langs => {"English" => "en-US", "French" => "fr"},
+        :default_lang => "en-US"
+    }
+    Commandline.new([], options).csv2android
+
+    assert File.exist?("./values/strings.xml")
+    assert File.exist?("./values-fr/strings.xml")
+    assert !File.exist?("./values-en-rUS/strings.xml")
+
+    # clean up
+    system("rm -rf ./values/")
+    system("rm -rf ./values-fr/")
+  end
+
   def test_csv2android_with_output_dir
     options = {
     	:filename => "test/data/test_data_multiple_langs.csv",