diff --git a/lib/netsuite.rb b/lib/netsuite.rb
index 9859acde..dcbef951 100644
--- a/lib/netsuite.rb
+++ b/lib/netsuite.rb
@@ -8,6 +8,7 @@
 require 'netsuite/rest/utilities/roles'
 require 'netsuite/rest/utilities/request'
 require 'netsuite/core_ext/string/lower_camelcase'
+require 'active_support'
 
 module NetSuite
   autoload :Configuration, 'netsuite/configuration'