diff --git a/README.md b/README.md
index 854146a..2ee653b 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,11 @@ git clone https://github.com/liamcottle/meshtastic-map
 cd meshtastic-map
 ```
 
+Install Meshtastic protobufs definitions
+```
+git clone https://github.com/meshtastic/protobufs src/protobufs
+```
+
 Install NodeJS dependencies
 
 ```