diff --git a/rails_event_store_active_record/lib/rails_event_store_active_record/event_repository.rb b/rails_event_store_active_record/lib/rails_event_store_active_record/event_repository.rb
index 7c767ce9d1..d73574421b 100644
--- a/rails_event_store_active_record/lib/rails_event_store_active_record/event_repository.rb
+++ b/rails_event_store_active_record/lib/rails_event_store_active_record/event_repository.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require 'active_support/core_ext/array'
 require 'activerecord-import'
 
 module RailsEventStoreActiveRecord