diff --git a/test/dummy/app/models/animal.rb b/test/dummy/app/models/animal.rb
index 99415b05..18c97312 100644
--- a/test/dummy/app/models/animal.rb
+++ b/test/dummy/app/models/animal.rb
@@ -1,4 +1,4 @@
 class Animal < ActiveRecord::Base
   has_paper_trail
-  set_inheritance_column 'species'
+  self.inheritance_column = 'species'
 end