diff --git a/spec/dummy/app/decorators/post_decorator.rb b/spec/dummy/app/decorators/post_decorator.rb
index 316fa7a..d57ac16 100755
--- a/spec/dummy/app/decorators/post_decorator.rb
+++ b/spec/dummy/app/decorators/post_decorator.rb
@@ -53,4 +53,8 @@ class PostDecorator < Draper::Decorator
   def updated_at
     :overridden
   end
+
+  def persisted?
+    true
+  end
 end