diff --git a/activemodel/lib/active_model/observing.rb b/activemodel/lib/active_model/observing.rb
index b94ad4bb9bbb0189e429ec382526815838dabbb7..d48f2e8a1f8c870a2c891f9786d7adec0506967c 100644
--- a/activemodel/lib/active_model/observing.rb
+++ b/activemodel/lib/active_model/observing.rb
@@ -125,7 +125,7 @@ def notify_observers(method)
   #
   #   class CommentObserver < ActiveModel::Observer
   #     def after_save(comment)
-  #       Notifications.deliver_comment("admin@do.com", "New comment was posted", comment)
+  #       Notifications.comment("admin@do.com", "New comment was posted", comment).deliver
   #     end
   #   end
   #
diff --git a/activerecord/lib/active_record/observer.rb b/activerecord/lib/active_record/observer.rb
index c723436330306c0c83364f5cb67dd4b7c7e83bc5..5a5351b517d96347d8414c1e1e9ff669b7742f0a 100644
--- a/activerecord/lib/active_record/observer.rb
+++ b/activerecord/lib/active_record/observer.rb
@@ -11,7 +11,7 @@ module ActiveRecord
   #
   #   class CommentObserver < ActiveRecord::Observer
   #     def after_save(comment)
-  #       Notifications.deliver_comment("admin@do.com", "New comment was posted", comment)
+  #       Notifications.comment("admin@do.com", "New comment was posted", comment).deliver
   #     end
   #   end
   #