diff --git a/ClaimLink/ClaimLink.cs b/ClaimLink/ClaimLink.cs
index cbf4aeb..bf918f3 100644
--- a/ClaimLink/ClaimLink.cs
+++ b/ClaimLink/ClaimLink.cs
@@ -1,10 +1,24 @@
+using System.Collections.Generic;
 using ProtoBuf;
 
 namespace ClaimLink;
 
+[ProtoContract]
+public class ClaimLinkMember
+{
+    [ProtoMember(1)]
+    public string OwnerPlayerUid = "";
+
+    [ProtoMember(2)]
+    public int LocalClaimIndex;
+}
+
 [ProtoContract]
 public class ClaimLink
 {
     [ProtoMember(1)]
     public int GroupId;
+
+    [ProtoMember(2)]
+    public List<ClaimLinkMember> Members = new();
 }