diff --git a/docker/edge/docker-compose.modules.yml b/docker/edge/docker-compose.modules.yml
index 13238e0..7965a4e 100644
--- a/docker/edge/docker-compose.modules.yml
+++ b/docker/edge/docker-compose.modules.yml
@@ -26,7 +26,7 @@ services:
     environment:
       IOT_HTTP: "http://ingress"
       IOT_MQTT: "ingress:80"
-      # IOT_SERIAL: "ws"
+      # IOT_SERIAL: "ws1234"
       # IOT_DELAY: 10
       IOT_DEBUG: 1
     command: ["/opt/bite/device_simulator.py", "-t", "ws"]