diff --git a/README.md b/README.md
index 39da7b8..0b9f60a 100644
--- a/README.md
+++ b/README.md
@@ -168,9 +168,9 @@ git pull figli master
 # then update all submodules
 git submodule update --recursive --checkout
 # or only one
-git submodule update app/
+git submodule update --checkout app/
 # or
-git submodule update api/
+git submodule update --checkout api/
 make api_maj_config
 ```