diff --git a/app/models/recurring_donation.rb b/app/models/recurring_donation.rb
index c6002b96..8833b076 100644
--- a/app/models/recurring_donation.rb
+++ b/app/models/recurring_donation.rb
@@ -1,5 +1,4 @@
 # License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
-require_dependency 'lib/timespan'
 
 class RecurringDonation < ApplicationRecord