diff --git a/Gemfile b/Gemfile
index b463c85..5e53cd2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,7 @@
+# encoding: utf-8
+
 source 'https://rubygems.org'
 
 gem 'rake'
 gem 'serverspec'
-gem 'rubocop',    '~> 0.23'
\ No newline at end of file
+gem 'rubocop',    '~> 0.23'