diff --git a/.env.example b/.env.example
index 9bd1f07..12aa22f 100644
--- a/.env.example
+++ b/.env.example
@@ -9,6 +9,7 @@ APP_TLS_CERTIFICATE=""
 APP_TLS_KEY=""
 
 ### Database configuration
+### Fill only if you want to use an external database (https://flowfuse.com/docs/install/docker/#how-to-use-external-database-server%3F), leave empty otherwise
 DB_HOST=""
 DB_USER=""
 DB_PASSWORD=""