diff --git a/README.md b/README.md
index a672f31..70925d5 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,7 @@ cd services-xbee_net
 
 ---
 
-##### Config `.env`:
+##### OPTIONAL: Config `.env` (NOTE: run-single.sh will configure this for you, you don't need to modify this manually):
 ```bash
 # Configuration for xbnet0
 XBEE_PORT=/dev/ttyUSB0