diff --git a/backend/src/Squidex.Domain.Apps.Core.Operations/Tags/TagsExport.cs b/backend/src/Squidex.Domain.Apps.Core.Operations/Tags/TagsExport.cs
index 3b894d621..872fdee05 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Operations/Tags/TagsExport.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Operations/Tags/TagsExport.cs
@@ -7,7 +7,7 @@
 
 namespace Squidex.Domain.Apps.Core.Tags
 {
-    public sealed class TagsExport
+    public class TagsExport
     {
         public Dictionary<string, Tag>? Tags { get; set; }