diff --git a/README.md b/README.md
index e420345..594d964 100644
--- a/README.md
+++ b/README.md
@@ -130,6 +130,12 @@ you will need to setup a few things.
 You will have to know the "App ID" you intend to operator under. 
 This can be generated by creating a v4 UUID as long as it is the same for all of the peers in you network (Big and Small).
 
+add the following to the `additionalEnv` section of the values.yaml file for the `hydra-subscription` deployment.
+
+```yaml
+PEER_APP_ID: "your-app-id"
+```
+
 via the HTTP API (see the ports section we will make a few different calls.
 
 ```bash