diff --git a/sa-token-demo/sa-token-demo-sso/sa-token-demo-sso2-client/src/main/resources/application.yml b/sa-token-demo/sa-token-demo-sso/sa-token-demo-sso2-client/src/main/resources/application.yml
index c38d41ba..70ed2d43 100644
--- a/sa-token-demo/sa-token-demo-sso/sa-token-demo-sso2-client/src/main/resources/application.yml
+++ b/sa-token-demo/sa-token-demo-sso/sa-token-demo-sso2-client/src/main/resources/application.yml
@@ -8,7 +8,7 @@ sa-token:
     sso-client:
         # SSO-Server 端主机地址
         server-url: http://sa-sso-server.com:9000
-        # 前后端分离时打开这个
+        # 在 sso-server 端前后端分离时打开这个（上面的不要注释，auth-url 配置项和 server-url 要同时存在）
         # auth-url: http://127.0.0.1:8848/sa-token-demo-sso-server-h5/sso-auth.html
     sign:
         # API 接口调用秘钥