diff --git a/app/logical/daily_maintenance.rb b/app/logical/daily_maintenance.rb
index c127e09ec..c648a944a 100644
--- a/app/logical/daily_maintenance.rb
+++ b/app/logical/daily_maintenance.rb
@@ -7,6 +7,7 @@ class DailyMaintenance
     ModAction.delete_all(['created_at < ?', 3.days.ago])
     Delayed::Job.delete_all(['created_at < ?', 7.days.ago])
     PostVote.delete_all(['created_at < ?', 1.month.ago])
+    CommentVote.delete_all(['created_at < ?', 1.month.ago])
     TagSubscription.process_all
     ApiCacheGenerator.new.generate_tag_cache
   end