diff --git a/jsm.go b/jsm.go
index 75c66b237..50041de2d 100644
--- a/jsm.go
+++ b/jsm.go
@@ -406,7 +406,9 @@ type ClusterInfo struct {
 type PeerInfo struct {
 	Name    string        `json:"name"`
 	Current bool          `json:"current"`
+	Offline bool          `json:"offline,omitempty"`
 	Active  time.Duration `json:"active"`
+	Lag     uint64        `json:"lag,omitempty"`
 }
 
 // UpdateStream updates a Stream.