diff --git a/README.md b/README.md
index 4c865f5..8edd8d7 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,10 @@
+## Submodules
+You need to pull the submodules
+```
+git submodule init
+git submodule update
+```
+
 ## Certbot
 The project is adjusted to use of certbot.  
 This command might come in handy: