diff --git a/app/models/user.rb b/app/models/user.rb
index 3ca79cedf..03f2db27b 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -163,7 +163,6 @@ class User < ActiveRecord::Base
       username: nil,
       email: nil,
       unconfirmed_email: nil,
-      document_number: nil,
       phone_number: nil,
       encrypted_password: "",
       confirmation_token: nil,