diff --git a/app/models/environment.rb b/app/models/environment.rb
index ae0c048..c169a46 100644
--- a/app/models/environment.rb
+++ b/app/models/environment.rb
@@ -65,7 +65,8 @@ class Environment < ActiveRecord::Base
 
   has_many :regions
 
-  has_many :role_assignments, :as => 'resource'
+  acts_as_accessible
+
   def superior_intances
     [self, nil]
   end
diff --git a/app/models/profile.rb b/app/models/profile.rb
index 68ba930..58d75f6 100644
--- a/app/models/profile.rb
+++ b/app/models/profile.rb
@@ -88,8 +88,6 @@ class Profile < ActiveRecord::Base
   has_many :domains, :as => :owner
   belongs_to :environment
 
-  has_many :role_assignments, :as => :resource
-
   has_many :articles, :dependent => :destroy
   belongs_to :home_page, :class_name => Article.name, :foreign_key => 'home_page_id'
 
--
libgit2 0.21.2