diff --git a/lib/petrify.rb b/lib/petrify.rb
index cc1bbda..5ca26ea 100644
--- a/lib/petrify.rb
+++ b/lib/petrify.rb
@@ -18,7 +18,7 @@ module Petrify
     fn = File.join(dir, 'index.html')
     
     # https://stackoverflow.com/questions/6125265/using-layouts-in-haml-files-independently-of-rails
-    html = Haml::Engine.new(File.read(@@layout_fn)).render do
+    html = Haml::Engine.new(File.read(@@layout_fn)).render(Object.new, locals) do
       Haml::Engine.new(File.read(File.join(@@views_dir, "#{template}.haml"))).render(Object.new, locals)
     end