diff --git a/models/stat.rb b/models/stat.rb
index 9b359bd4..28d18f26 100644
--- a/models/stat.rb
+++ b/models/stat.rb
@@ -1,3 +1,5 @@
+require 'resolv'
+
 class Stat < Sequel::Model
   FREE_RETAINMENT_DAYS = 30