diff --git a/.env.example b/.env.example
index 15b3ba5..44cda9b 100644
--- a/.env.example
+++ b/.env.example
@@ -84,4 +84,5 @@ MQTT_OUTGOING_QUEUE=mqtt_outgoing_commands
 
 # EMQX Ports (for local dev)
 MQTT_PORT=1883
+MQTT_SSL_PORT=8883
 EMQX_DASHBOARD_PORT=18083
diff --git a/compose.yaml b/compose.yaml
index 276c232..f9aefb4 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -118,6 +118,7 @@ services:
         hostname: emqx
         ports:
             - '${MQTT_PORT:-1883}:1883'
+            - '${MQTT_SSL_PORT:-8883}:8883'
             - '${EMQX_DASHBOARD_PORT:-18083}:18083'
             - '8083:8083'
         environment: