diff --git a/lib/hola.rb b/lib/hola.rb
index 11183c3..b07421d 100644
--- a/lib/hola.rb
+++ b/lib/hola.rb
@@ -1,3 +1,5 @@
+# encoding: UTF-8
+
 class Hola
   def self.hi(language)
     translator = Translator.new(language)
diff --git a/lib/hola/translator.rb b/lib/hola/translator.rb
index a33abe6..8dce55d 100644
--- a/lib/hola/translator.rb
+++ b/lib/hola/translator.rb
@@ -1,3 +1,5 @@
+# encoding: UTF-8
+
 class Hola::Translator
   def initialize(language = "english")
     @language = language
@@ -9,6 +11,8 @@ def hi
       "hola mundo"
     when "korean"
       "anyoung ha se yo"
+    when "polish"
+      "witaj świecie"
     else
       "hello world"
     end
diff --git a/test/test_hola.rb b/test/test_hola.rb
index 54d1b20..8250329 100644
--- a/test/test_hola.rb
+++ b/test/test_hola.rb
@@ -1,3 +1,5 @@
+# encoding: UTF-8
+
 require 'test/unit'
 require 'hola'
 
@@ -13,4 +15,8 @@ def test_any_hello
   def test_spanish_hello
     assert_equal "hola mundo", Hola.hi("spanish")
   end
+  
+  def test_polish_hello
+    assert_equal "witaj świecie", Hola.hi("polish")
+  end
 end