diff --git a/README.md b/README.md
index 43dcd677..1173260b 100644
--- a/README.md
+++ b/README.md
@@ -152,6 +152,17 @@ There are several components available here.  As an end-user, you can currently
 
 ## Building and running
 
+### Clone the Repository
+Master Password uses [Git Submodules](https://git-scm.com/book/en/v2/Git-Tools-Submodules). Clone the repository using:
+```
+git clone --recurse-submodules git@gitlab.com:MasterPassword/MasterPassword.git
+```
+to clone the sub modules together with the Master Password source.
+
+If you cloned the repository already, you can fetch the required sub modules using:
+```
+git submodule update --init --recursive
+```
 
 ### macOS or iOS