diff --git a/README.md b/README.md
index ed29d61..9ab7e46 100644
--- a/README.md
+++ b/README.md
@@ -177,7 +177,7 @@ extra repositories, or dependencies...
 
 ## Command: ``pull-submodule``
 
-**Prerequites:** init
+**Prerequites:** init + being in a git repository. (if not, you can simply run ``git init``)
 
 if you already have a repos.yml file on github / gitlab, it can be convenient to
 synchronize the repository, instead of copy past the ``repos.yml`` manually.