diff --git a/lib/redistat.rb b/lib/redistat.rb
index ae9fd8d..143e38f 100644
--- a/lib/redistat.rb
+++ b/lib/redistat.rb
@@ -9,6 +9,7 @@ require 'time/ext'
 require 'json'
 require 'digest/sha1'
 
+require 'redistat/collection'
 require 'redistat/database'
 require 'redistat/date'
 require 'redistat/event'