diff --git a/lib/jasmine-headless-webkit/version.rb b/lib/jasmine-headless-webkit/version.rb
index 338b848..ead45cc 100644
--- a/lib/jasmine-headless-webkit/version.rb
+++ b/lib/jasmine-headless-webkit/version.rb
@@ -1,7 +1,7 @@
 module Jasmine
   module Headless
     module Webkit
-      VERSION = "0.3.0"
+      VERSION = "0.4.0"
     end
   end
 end
diff --git a/lib/jasmine/headless/task.rb b/lib/jasmine/headless/task.rb
index dcf0086..43b7e0b 100644
--- a/lib/jasmine/headless/task.rb
+++ b/lib/jasmine/headless/task.rb
@@ -1,6 +1,8 @@
 module Jasmine
   module Headless
     class Task
+      include Rake::DSL
+
       attr_accessor :colors, :keep_on_error, :jasmine_config
 
       def initialize(name = 'jasmine:headless')