diff --git a/docs/advanced-installation.md b/docs/advanced-installation.md
index a2615b8f6..348eb7270 100644
--- a/docs/advanced-installation.md
+++ b/docs/advanced-installation.md
@@ -39,7 +39,7 @@ Dokku ships with a pre-built version of version of the [buildstep](https://githu
 ```shell
 git clone https://github.com/progrium/dokku.git
 cd dokku
-sudo BUILD_STACK=true make install
+sudo BUILD_STACK=true STACK_URL=https://github.com/progrium/buildstep.git make install
 ```
 
 ## Configuring