diff --git a/docker-compose.yml b/docker-compose.yml
index c20053d..5a1b4da 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -129,7 +129,7 @@ services:
     labels:
       - "com.centurylinklabs.watchtower.enable=true"
     ports:
-      - "${CONFIG_WS_PORT}:3002"    # ws-gateway WebSocket 对外端口映射
+      - "${CONFIG_WS_PORT:-3002}:3002"    # ws-gateway WebSocket 对外端口映射
     read_only: true
     networks:
       - easyai