diff --git a/src/Squidex.Domain.Apps.Read.MongoDb/Assets/MongoAssetEntity.cs b/src/Squidex.Domain.Apps.Read.MongoDb/Assets/MongoAssetEntity.cs
index 10d6f31ff..e0703dc59 100644
--- a/src/Squidex.Domain.Apps.Read.MongoDb/Assets/MongoAssetEntity.cs
+++ b/src/Squidex.Domain.Apps.Read.MongoDb/Assets/MongoAssetEntity.cs
@@ -19,7 +19,8 @@ namespace Squidex.Domain.Apps.Read.MongoDb.Assets
         IAssetEntity,
         IUpdateableEntityWithVersion,
         IUpdateableEntityWithCreatedBy,
-        IUpdateableEntityWithLastModifiedBy
+        IUpdateableEntityWithLastModifiedBy,
+        IUpdateableEntityWithAppRef
     {
         [BsonRequired]
         [BsonElement]
diff --git a/src/Squidex.Domain.Apps.Read.MongoDb/Contents/MongoContentEntity.cs b/src/Squidex.Domain.Apps.Read.MongoDb/Contents/MongoContentEntity.cs
index 070c535ec..f2f19251e 100644
--- a/src/Squidex.Domain.Apps.Read.MongoDb/Contents/MongoContentEntity.cs
+++ b/src/Squidex.Domain.Apps.Read.MongoDb/Contents/MongoContentEntity.cs
@@ -23,7 +23,8 @@ namespace Squidex.Domain.Apps.Read.MongoDb.Contents
         IContentEntity,
         IUpdateableEntityWithVersion,
         IUpdateableEntityWithCreatedBy,
-        IUpdateableEntityWithLastModifiedBy
+        IUpdateableEntityWithLastModifiedBy,
+        IUpdateableEntityWithAppRef
     {
         private NamedContentData data;
 
diff --git a/src/Squidex.Domain.Apps.Read.MongoDb/History/MongoHistoryEventEntity.cs b/src/Squidex.Domain.Apps.Read.MongoDb/History/MongoHistoryEventEntity.cs
index e09f4206e..13cac817e 100644
--- a/src/Squidex.Domain.Apps.Read.MongoDb/History/MongoHistoryEventEntity.cs
+++ b/src/Squidex.Domain.Apps.Read.MongoDb/History/MongoHistoryEventEntity.cs
@@ -17,7 +17,8 @@ namespace Squidex.Domain.Apps.Read.MongoDb.History
     public sealed class MongoHistoryEventEntity : MongoEntity,
         IEntityWithAppRef,
         IUpdateableEntityWithVersion,
-        IUpdateableEntityWithCreatedBy
+        IUpdateableEntityWithCreatedBy,
+        IUpdateableEntityWithAppRef
     {
         [BsonRequired]
         [BsonElement]