diff --git a/app/models/collection.rb b/app/models/collection.rb
index e742b8bfdb777108ac6a90489530aa33a03b12d6..015116ae819cd999ad898526fd766e2b5fc868ee 100644
--- a/app/models/collection.rb
+++ b/app/models/collection.rb
@@ -1,5 +1,6 @@
 class Collection
   include ActiveModel::Model
+  include RepositoriesProxy
   attr_accessor :id, :created_at, :last_modified, :name, :description, :privacy,
                 :owner, :learning_objects
   validates_presence_of :name, :created_at, :owner, :learning_objects