diff --git a/lib/rails_extensions.rb b/lib/rails_extensions.rb
index d73665c..45f4cc4 100644
--- a/lib/rails_extensions.rb
+++ b/lib/rails_extensions.rb
@@ -11,8 +11,10 @@ module ActionController
         unless filename = options.delete(:plist_filename)
           if plist.is_a? Array
             filename = plist.first.class.name.pluralize + ".plist"
-          else
+          elsif plist.respond_to?(:id)
             filename = "#{plist.class.name}-#{plist.id}.plist"
+          else
+            filename = "#{plist.class.name}-data.plist"
           end
         end