1 files changed, 5 insertions, 0 deletions
diff --git a/MediaBrowser.Model/Entities/UserItemData.cs b/MediaBrowser.Model/Entities/UserItemData.cs
index 817cf640e..d7b692014 100644
--- a/MediaBrowser.Model/Entities/UserItemData.cs
+++ b/MediaBrowser.Model/Entities/UserItemData.cs
@@ -1,13 +1,18 @@
 using System;
+using ProtoBuf;
 
 namespace MediaBrowser.Model.Entities
 {
+    [ProtoContract]
     public class UserItemData
     {
+        [ProtoMember(1)]
         public UserItemRating Rating { get; set; }
 
+        [ProtoMember(2)]
         public long PlaybackPositionTicks { get; set; }
 
+        [ProtoMember(3)]
         public int PlayCount { get; set; }
     }