diff --git a/docs/deployment/deployment-tasks.md b/docs/deployment/deployment-tasks.md
index a33f39f6e..940769cc2 100644
--- a/docs/deployment/deployment-tasks.md
+++ b/docs/deployment/deployment-tasks.md
@@ -13,8 +13,8 @@ Common use cases include:
 
 Dokku accomplishes this by using an `app.json` file. We (mostly) use the same format as Heroku's [app.json](https://devcenter.heroku.com/articles/app-json-schema).
 However, dokku currently only supports the nodes `scripts.dokku.predeploy` and `scripts.dokku.postdeploy`.
-Simply place an `app.json` file in the root of your repository.
-NOTE: `app.json` is only supported in buildpack-deployed apps and postdeploy changes are not committed to the app image.
+Simply place an `app.json` file in the root of your repository or for dockerfile apps, `ADD` it to /app.
+NOTE: postdeploy changes are *NOT* committed to the app image.
 
 ### Example app.json