diff --git a/docs/advanced-usage/persistent-storage.md b/docs/advanced-usage/persistent-storage.md
index fa288c49b77..5ef3457e388 100644
--- a/docs/advanced-usage/persistent-storage.md
+++ b/docs/advanced-usage/persistent-storage.md
@@ -165,7 +165,7 @@ dokku docker-options:add node-js-app build "-v /tmp/python-test:/opt/test"
 
 You cannot use mounted volumes during the build phase of a Dockerfile deploy. This is because Docker does not support volumes when executing `docker build`.
 
-> Note: **This can cause data loss** if you bind a mount under `/app` in buildpack apps as herokuish will attempt to remove the original app path during the build phase.
+> Warning: **This can cause data loss** if you bind a mount under `/app` in buildpack apps as herokuish will attempt to remove the original app path during the build phase.
 
 ## App User and Persistent Storage file ownership (buildpack apps only)