diff --git a/Client-server-discovery-lifecycle.md b/Client-server-discovery-lifecycle.md
index aacef45..bb24628 100644
--- a/Client-server-discovery-lifecycle.md
+++ b/Client-server-discovery-lifecycle.md
@@ -1,12 +1,21 @@
 For older discussion see [XArchived: Client server discovery lifecycle](./XArchived:-Client-server-discovery-lifecycle)
 
-### active.json
+### ref.json
 
 This file will be placed under `$cwd/project/target/`.
 
 ```
 {
-   "portfile": "file:///Users/xxx/.sbt/server/$hash_of_cwd/portfile.json",
+   "portfile": "file:///Users/xxx/.sbt/server/$hash_of_cwd/active.json",
    "url": "tcp://127.0.0.0:xxxx"
 }
 ```
+
+### active.json
+
+```
+{
+   "url": "tcp://127.0.0.0:xxxx"
+}
+```
+