diff --git a/docs/en/setup/backend/ui-setup.md b/docs/en/setup/backend/ui-setup.md
index 560d899809..bc20c6dc13 100644
--- a/docs/en/setup/backend/ui-setup.md
+++ b/docs/en/setup/backend/ui-setup.md
@@ -2,7 +2,7 @@
 SkyWalking UI distribution is already included in our Apache official release.
 
 ## Startup
-Startup script is also in `/bin/webappService.sh`(.bat). UI runs as an OS Java process, powered-by Zuul.
+Startup script is also in `/bin/webappService.sh`(.bat). UI runs as a Java process, powered-by Armeria.
 
 ## Settings
 The settings file of UI is  `webapp/webapp.yml` in the distribution package. It has three parts.
@@ -13,9 +13,9 @@ The settings file of UI is  `webapp/webapp.yml` in the distribution package. It
 ```yaml
 serverPort: ${SW_SERVER_PORT:-8080}
 
-# Comma separated list of OAP addresses, without http:// prefix.
-oapServices: ${SW_OAP_ADDRESS:-localhost:12800}
-zipkinServices: ${SW_ZIPKIN_ADDRESS:localhost:9412}
+# Comma separated list of OAP addresses, with `http://` or `https://` prefix.
+oapServices: ${SW_OAP_ADDRESS:-http://localhost:12800}
+zipkinServices: ${SW_ZIPKIN_ADDRESS:http://localhost:9412}
 ```
 
 ## Start with Docker Image