diff --git a/lib/delayed/backend/job_preparer.rb b/lib/delayed/backend/job_preparer.rb
index f545eda0e..24c869752 100644
--- a/lib/delayed/backend/job_preparer.rb
+++ b/lib/delayed/backend/job_preparer.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/array/extract_options'
+
 module Delayed
   module Backend
     class JobPreparer