diff --git a/README.md b/README.md
index 1df8954e..65de2e43 100644
--- a/README.md
+++ b/README.md
@@ -122,6 +122,7 @@ sudo nano /etc/mosquitto/conf.d/default.conf
 This will open an empty file. Paste the following into it.
 ```
 allow_anonymous false
+persistence true
 password_file /etc/mosquitto/passwd
 listener 1883
 # ...