diff --git a/app/models/article.rb b/app/models/article.rb
index 7fd03e2..964cb81 100644
--- a/app/models/article.rb
+++ b/app/models/article.rb
@@ -5,7 +5,7 @@ class Article < ActiveRecord::Base
 
   validates_uniqueness_of :slug, :scope => ['profile_id', 'parent_id'], :message => _('%{fn} (the code generated from the article name) is already being used by another article.')
 
-  belongs_to :last_changed_by, :class_name => Person.name, :foreign_key => 'last_changed_by_id'
+  belongs_to :last_changed_by, :class_name => 'Person', :foreign_key => 'last_changed_by_id'
 
   has_many :comments, :dependent => :destroy
 
--
libgit2 0.21.2