diff --git a/Gemfile b/Gemfile
index b4e2a20..1269e18 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,4 @@
+# encoding: utf-8
 source "https://rubygems.org"
 
 gemspec
diff --git a/Gemfile.lock b/Gemfile.lock
index 1c4990d..37a0fc7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,6 +9,7 @@ GEM
   specs:
     diff-lcs (1.1.3)
     inflecto (0.0.2)
+    rake (10.1.0)
     rspec (2.8.0)
       rspec-core (~> 2.8.0)
       rspec-expectations (~> 2.8.0)
@@ -23,4 +24,5 @@ PLATFORMS
 
 DEPENDENCIES
   gaston!
+  rake
   rspec (~> 2.8)
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..70a846d
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,5 @@
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec)
+
+task :default => :spec
diff --git a/benchmark/gaston.rb b/benchmark/gaston.rb
index a25db34..bfb81f4 100644
--- a/benchmark/gaston.rb
+++ b/benchmark/gaston.rb
@@ -1,3 +1,4 @@
+# encoding: utf-8
 require 'benchmark'
 require_relative "../lib/gaston"
 
diff --git a/gaston.gemspec b/gaston.gemspec
index 3412ba8..2fc94bd 100644
--- a/gaston.gemspec
+++ b/gaston.gemspec
@@ -17,4 +17,5 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
   s.add_dependency "inflecto"
   s.add_development_dependency "rspec", "~>2.8"
+  s.add_development_dependency "rake"
 end