--- occi-core-4.2.16.orig/lib/occi-core.rb	2014-08-01 23:57:20.414084069 +0200
+++ occi-core-4.2.16/lib/occi-core.rb	2014-08-02 19:14:45.247546925 +0200
@@ -4,6 +4,7 @@ require 'set'
 require 'uri'
 require 'hashie/mash'
 
+require 'active_support'
 require 'active_support/core_ext'
 require 'active_support/json'
 require 'active_support/inflector'