Rakefile in knife-ec2-0.6.2 vs Rakefile in knife-ec2-0.6.4

@@ -21,10 +21,10 @@
 require 'bundler'
 Bundler::GemHelper.install_tasks
 
 # require 'rubygems'
 # require 'rake/gempackagetask'
-require 'rake/rdoctask'
+require 'rdoc/task'
 
 begin
   require 'sdoc'
 
   Rake::RDocTask.new do |rdoc|