diff --git a/activejob/lib/active_job/queue_adapter.rb b/activejob/lib/active_job/queue_adapter.rb
index 4bd28522ab2a7ecd560c8c265161a9083b5b32da..b42ec3b63843ca02143ec4654dda5acf3ac21ae8 100644
--- a/activejob/lib/active_job/queue_adapter.rb
+++ b/activejob/lib/active_job/queue_adapter.rb
@@ -2,6 +2,8 @@
 require 'active_support/core_ext/string/inflections'
 
 module ActiveJob
+  # The <tt>ActionJob::QueueAdapter</tt> module is used to load the 
+  # correct adapter. The default queue adapter is the :inline queue.
   module QueueAdapter #:nodoc:
     extend ActiveSupport::Concern
 
diff --git a/activejob/lib/active_job/queue_adapters/delayed_job_adapter.rb b/activejob/lib/active_job/queue_adapters/delayed_job_adapter.rb
index 4d27c4fff8ffc6a0ab1676aae3d372dae107509c..69d9e70de3e97f1eaebc0d712e50a109a729f750 100644
--- a/activejob/lib/active_job/queue_adapters/delayed_job_adapter.rb
+++ b/activejob/lib/active_job/queue_adapters/delayed_job_adapter.rb
@@ -6,10 +6,10 @@ module QueueAdapters
     #
     # Delayed::Job (or DJ) encapsulates the common pattern of asynchronously
     # executing longer tasks in the background. Although DJ can have many
-    # storage backends one of the most used is based on Active Record.
+    # storage backends, one of the most used is based on Active Record.
     # Read more about Delayed Job {here}[https://github.com/collectiveidea/delayed_job].
     #
-    # To use Delayed Job set the queue_adapter config to +:delayed_job+.
+    # To use Delayed Job, set the queue_adapter config to +:delayed_job+.
     #
     #   Rails.application.config.active_job.queue_adapter = :delayed_job
     class DelayedJobAdapter