diff --git a/Bottomly/Models/Karma.cs b/Bottomly/Models/Karma.cs
index cff481c..58ea5bf 100644
--- a/Bottomly/Models/Karma.cs
+++ b/Bottomly/Models/Karma.cs
@@ -20,6 +20,11 @@ public class Karma
     [BsonElement("awarded")] public DateTime Awarded { get; set; }
 
     [BsonElement("karma_type")] public string KarmaTypeValue { get; set; } = string.Empty;
+    
+    /// <summary>
+    /// Legacy element to enable support from pymongo persisted data
+    /// </summary>
+    [BsonElement("_cls")] public string Cls { get; set; } = string.Empty;
 
     [BsonIgnore]
     public KarmaType KarmaType
diff --git a/Bottomly/Models/Member.cs b/Bottomly/Models/Member.cs
index ecf780e..eae6c81 100644
--- a/Bottomly/Models/Member.cs
+++ b/Bottomly/Models/Member.cs
@@ -16,6 +16,12 @@ public class Member
 
     [BsonElement("misc_info")] public string MiscInfo { get; set; } = string.Empty;
 
+    /// <summary>
+    ///     Legacy element to enable support from pymongo persisted data
+    /// </summary>
+    [BsonElement("_cls")]
+    public string Cls { get; set; } = string.Empty;
+
     [BsonIgnore]
     public string Note =>
         $"FullName: {FullName}\n" +