diff --git a/BTCPayServer.Abstractions/Models/UploadImageResultModel.cs b/BTCPayServer.Abstractions/Models/UploadImageResultModel.cs
index 2c19af719..06735fe5a 100644
--- a/BTCPayServer.Abstractions/Models/UploadImageResultModel.cs
+++ b/BTCPayServer.Abstractions/Models/UploadImageResultModel.cs
@@ -1,3 +1,4 @@
+#nullable enable
 using System;
 using System.Collections.Generic;
 using System.Linq;