diff --git a/kbs/quickstart.md b/kbs/quickstart.md
index 4e6458afe3..77b8a22aa1 100644
--- a/kbs/quickstart.md
+++ b/kbs/quickstart.md
@@ -72,7 +72,7 @@ sudo make install-cli
 
 Start KBS with HTTP server:
 ```shell
-kbs --config-file config/kbs-config.toml
+sudo kbs --config-file config/kbs-config.toml &
 ```
 
 If you want start KBS with HTTPS server, use `--private-key` and `--certificate`