diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..f00c4cb
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,5 @@
+rvm:
+  - 1.8.7
+  - 1.9.2
+  - ree
+script: "bundle exec spec"
diff --git a/Gemfile b/Gemfile
index 4156a87..9cdbbed 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,7 +2,7 @@ source "http://rubygems.org"
 
 # Specify your gem's dependencies in guard-jasmine-headless-webkit.gemspec
 gemspec
-gem 'guard'
+gem 'guard', :git => 'https://github.com/guard/guard.git'
 gem 'rspec'
 gem 'mocha'
 gem 'rake', '0.8.7'
diff --git a/README.md b/README.md
index edfb7f2..badeab5 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,7 @@ home folder's `.jasmine-headless-webkit` file.
 * `:all_on_start => false` to not run everything when starting, just like `guard-rspec`.
 * `:run_before => "<command to run>` to run a command before running specs. If the command fails, the test run stops.
 * `:jammit => true` to run `jammit -f 2>/dev/null` before the tests for the current file change are run.
+* `:valid_extensions => %w{` to run `jammit -f 2>/dev/null` before the tests for the current file change are run.
 
 ## What's the deal with `newest_js_file`?
 
diff --git a/Rakefile b/Rakefile
index 3d78d95..88f2272 100644
--- a/Rakefile
+++ b/Rakefile
@@ -7,6 +7,10 @@ task :push_everywhere do
   system %{git push guard master}
 end
 
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec)
+
 namespace :spec do
   desc "Run on three Rubies"
   task :platforms do
@@ -15,8 +19,9 @@ namespace :spec do
     fail = false
     %w{1.8.7 1.9.2 ree}.each do |version|
       puts "Switching to #{version}"
-      system %{rvm #{version}}
-      system %{bundle exec rspec spec}
+      Bundler.with_clean_env do
+        system %{bash -c 'source ~/.rvm/scripts/rvm && rvm #{version} && bundle exec rake spec'}
+      end
       if $?.exitstatus != 0
         fail = true
         break
diff --git a/lib/guard/jasmine-headless-webkit.rb b/lib/guard/jasmine-headless-webkit.rb
index 5c5b848..704219c 100644
--- a/lib/guard/jasmine-headless-webkit.rb
+++ b/lib/guard/jasmine-headless-webkit.rb
@@ -73,7 +73,6 @@ module Guard
 
   class Dsl
     def newest_js_file(path)
-      p binding
       Dir[path + '*.{js,coffee}'].sort { |left, right| File.mtime(right) <=> File.mtime(left) }.first
     end
   end