diff --git a/README.md b/README.md
index 3f4c319..cdf7eba 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,13 @@
 # Hackertours Web Site
 
+## Complete the checkout
+
+We need the submodule for the theme, so update/clone the submodules:
+
+```shell
+git submodule update --init --recursive
+```
+
 ## Run in dev mode
 
 ```shell