diff --git a/README.md b/README.md
index 85f581f..19363e0 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,9 @@ A recipe is a collection of scripts and attached files  inside a subdirectory
 of `recipes/`. Theses script are executed into a chroot of the destination
 directory by `mmdebstrap` and use its hook system.
 
+The default recipe try to reproduce the image created with the reforn image
+creator by Lukas (see [here][[l_mnt_image] (minimal image only).
+
 ## Docker
 
 You can find a Dockerfile and an entrypoint script to help you create userland
diff --git a/src/make_userland.sh b/src/make_userland.sh
index 964e2f9..f80dc96 100755
--- a/src/make_userland.sh
+++ b/src/make_userland.sh
@@ -11,11 +11,15 @@ Create Debian userland filesystem for MNT Reform
 This script create an userland system for the MNT Reform 2 laptop
 
 USAGE:
-make_userland.sh -t <target> -r <recipe> -m <mirror>
+make_userland.sh -o <output> -r <recipe> -m <mirror>
 
-<target>
+  -o <output> directory tha contain our userlan system. a subdirectory with 
+   the recipe name will be created. Default: \tmp
 
-<recipe>.
+  -r <recipe> : recipe to apply, the name must be a subdorectory of the recipe\
+   directory. Default: default
+
+  -m <mirror> : debian mirror where download packages. Default: ftp.debian.org
 EOF
 }