diff --git a/lib/factory_girl.rb b/lib/factory_girl.rb
index f32d0e9..5dcc1e0 100644
--- a/lib/factory_girl.rb
+++ b/lib/factory_girl.rb
@@ -1,4 +1,4 @@
-require 'activesupport'
+require 'active_support'
 require 'factory_girl/factory'
 require 'factory_girl/attribute_proxy'
 require 'factory_girl/sequence'