diff --git a/README.md b/README.md
index 3b6fb831..f2088ca2 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,8 @@ asdf uninstall <name> <version>
 # asdf uninstall erlang 17.3
 ```
 
+*If a plugin supports downloading & compiling from source, you can also do this `ref:foo` (replace `foo` with the branch/tag/commit).* You'll have to use the same name when uninstalling too.
+
 ##### Lists installed versions
 
 ```bash