diff --git a/README.md b/README.md
index c2fc17b2..4440b238 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,11 @@ https://getcrankshaft.com/
 
 # Docker build image
 
+- Ensure binfmt support installed [binfmt-support](binfmt-misc.md)
+- Clone Prebuilts
+``` bash
+git clone https://github.com/opencardev/prebuilts.git
+```
 - Create config for pi-gen
 ```bash
 cp config.example config