diff --git a/lib/jbuilder.rb b/lib/jbuilder.rb
index 6b581577..e1c1dec4 100644
--- a/lib/jbuilder.rb
+++ b/lib/jbuilder.rb
@@ -3,6 +3,7 @@
 require 'jbuilder/key_formatter'
 require 'jbuilder/errors'
 require 'multi_json'
+require 'ostruct'
 
 class Jbuilder
   @@key_formatter = nil