diff --git a/docs/docs/configuration.md b/docs/docs/configuration.md
index 2d600a5..7768aaf 100644
--- a/docs/docs/configuration.md
+++ b/docs/docs/configuration.md
@@ -48,7 +48,7 @@ Description: If this node is part of a raft replication cluster, then this flag
 
 Flag: `--join-addr`<br/>
 Type: `string`<br/>
-Description: When adding a node to a replication cluster, this is the address and port of any cluster member. The current node will use this to request permission to join the cluster. The format of this flag is `<ip-address>:<discovery-port>`.
+Description: When adding a node to a replication cluster, this is the address and port of any cluster member. The current node will use this to request permission to join the cluster. The format of this flag is `<target-server-id>/<target-ip>:<target-port>`.
 
 Flag: `--discovery-port`<br/>
 Type: `integer`<br/>