diff --git a/README.md b/README.md
index 51b27b2..10af4f7 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 To run development environment simply execute
 ```
+git clone https://github.com/onny/nixos-nextcloud-testumgebung.git
+cd nixos-nextcloud-testumgebung
+git submodule update --init
 nix develop
 make
 ```