diff --git a/lib/noosfero/plugin.rb b/lib/noosfero/plugin.rb
index 436bf34..870e502 100644
--- a/lib/noosfero/plugin.rb
+++ b/lib/noosfero/plugin.rb
@@ -24,11 +24,17 @@ class Noosfero::Plugin
 
     def initialize!
       return if !should_load
-      available_plugins.each do |plugin_dir|
+
+      klasses = available_plugins.map do |plugin_dir|
         plugin_name = File.basename(plugin_dir)
-        plugin = load_plugin(plugin_name)
-        load_plugin_extensions(plugin_dir)
-        load_plugin_filters(plugin)
+        load_plugin plugin_name
+      end
+      available_plugins.each do |plugin_dir|
+        load_plugin_extensions plugin_dir
+      end
+      # filters must be loaded after all extensions
+      klasses.each do |plugin|
+        load_plugin_filters plugin
       end
     end
 
@@ -88,7 +94,7 @@ class Noosfero::Plugin
     # This is a generic method that initialize any possible filter defined by a
     # plugin to a specific controller
     def load_plugin_filters(plugin)
-      Rails.configuration.to_prepare do
+      ActionDispatch::Reloader.to_prepare do
         filters = plugin.new.send 'application_controller_filters' rescue []
         Noosfero::Plugin.add_controller_filters ApplicationController, plugin, filters
 
@@ -116,7 +122,7 @@ class Noosfero::Plugin
     end
 
     def load_plugin_extensions(dir)
-      Rails.configuration.to_prepare do
+      ActionDispatch::Reloader.to_prepare do
         Dir[File.join(dir, 'lib', 'ext', '*.rb')].each {|file| require_dependency file }
       end
     end
@@ -422,7 +428,7 @@ class Noosfero::Plugin
   def upload_files_extra_fields(article)
     nil
   end
-  
+
   # -> Adds fields to the signup form
   # returns = proc that creates html code
   def signup_extra_contents
diff --git a/lib/noosfero/plugin/spammable.rb b/lib/noosfero/plugin/spammable.rb
index d220bd8..a8a1712 100644
--- a/lib/noosfero/plugin/spammable.rb
+++ b/lib/noosfero/plugin/spammable.rb
@@ -1,4 +1,4 @@
-Rails.configuration.to_prepare do
+ActionDispatch::Reloader.to_prepare do
   Spammable.module_eval do
     def marked_as_spam
       plugins.dispatch(:marked_as_spam, self)
--
libgit2 0.21.2