diff --git a/README.md b/README.md
index 0bb618d..7ee8a56 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Official postgres plugin for dokku. Currently defaults to installing [postgres 9
 
 ```shell
 # on 0.4.x+
-dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres
+sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres
 ```
 
 ## commands