3 files changed, 3 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/acts/list.rb b/activerecord/lib/active_record/acts/list.rb
index 0e0e1e4f36..6d235967c6 100644
--- a/activerecord/lib/active_record/acts/list.rb
+++ b/activerecord/lib/active_record/acts/list.rb
@@ -1,8 +1,7 @@
 module ActiveRecord
   module Acts #:nodoc:
     module List #:nodoc:
-      def self.append_features(base)
-        super
+      def self.included(base)
         base.extend(ClassMethods)
       end
       
diff --git a/activerecord/lib/active_record/acts/nested_set.rb b/activerecord/lib/active_record/acts/nested_set.rb
index 8b02b358a9..9d5bcf4d3d 100644
--- a/activerecord/lib/active_record/acts/nested_set.rb
+++ b/activerecord/lib/active_record/acts/nested_set.rb
@@ -1,8 +1,7 @@
 module ActiveRecord
   module Acts #:nodoc:
     module NestedSet #:nodoc:
-      def self.append_features(base)
-        super        
+      def self.included(base)
         base.extend(ClassMethods)              
       end  
 
diff --git a/activerecord/lib/active_record/acts/tree.rb b/activerecord/lib/active_record/acts/tree.rb
index c5aa4cd22d..b8654ce4e6 100644
--- a/activerecord/lib/active_record/acts/tree.rb
+++ b/activerecord/lib/active_record/acts/tree.rb
@@ -1,8 +1,7 @@
 module ActiveRecord
   module Acts #:nodoc:
     module Tree #:nodoc:
-      def self.append_features(base)
-        super        
+      def self.included(base)
         base.extend(ClassMethods)              
       end