diff --git a/lib/xcake/core_ext/class.rb b/lib/xcake/core_ext/class.rb
index 3d468f0a..53ac8585 100644
--- a/lib/xcake/core_ext/class.rb
+++ b/lib/xcake/core_ext/class.rb
@@ -1,7 +1,7 @@
 module Xcake
   module CoreExtensions
     # @example  Including in a class
-    #           Class.send(:include, Xcake::CoreExtensions::ClassDescendants) # done with send because of old ruby versions
+    #           include Xcake::CoreExtensions::ClassDescendants
     #
     module ClassDescendants
       # Returns all descendants of a class
diff --git a/lib/xcake/generator.rb b/lib/xcake/generator.rb
index 87f46232..fc2f8b94 100644
--- a/lib/xcake/generator.rb
+++ b/lib/xcake/generator.rb
@@ -3,7 +3,7 @@ class Generator
     include Dependency
     include Plugin
     include Visitor
-    Class.send(:include, CoreExtensions::ClassDescendants) # done with send because of old ruby versions
+    include CoreExtensions::ClassDescendants
 
     attr_accessor :context
 
diff --git a/spec/core_ext/class_spec.rb b/spec/core_ext/class_spec.rb
index 8b2efbfd..6949796b 100644
--- a/spec/core_ext/class_spec.rb
+++ b/spec/core_ext/class_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 class Parent
-  Class.send(:include, Xcake::CoreExtensions::ClassDescendants) # done with send because of old ruby versions
+  include Xcake::CoreExtensions::ClassDescendants
 end
 
 class Child < Parent