diff --git a/activejob/lib/active_job/queue_name.rb b/activejob/lib/active_job/queue_name.rb
index 6ee7142ce6..9ae0345120 100644
--- a/activejob/lib/active_job/queue_name.rb
+++ b/activejob/lib/active_job/queue_name.rb
@@ -2,6 +2,7 @@ module ActiveJob
   module QueueName
     extend ActiveSupport::Concern
 
+    # Includes the ability to override the default queue name and prefix.
     module ClassMethods
       mattr_accessor(:queue_name_prefix)
       mattr_accessor(:default_queue_name) { "default" }