diff --git a/lib/redistat.rb b/lib/redistat.rb
index 6fe64f0..df7e130 100644
--- a/lib/redistat.rb
+++ b/lib/redistat.rb
@@ -1,6 +1,7 @@
 
 require 'rubygems'
 require 'active_support'
+require 'active_support/time' if !Time.respond_to?(:days_in_month) # Active Support 2.x and 3.x
 require 'redis'
 require 'date'
 require 'time'