diff --git a/FitConnect/SubmissionBuilder.cs b/FitConnect/SubmissionBuilder.cs
index 4fedb82be8dcc9326017c4e6cc9c546fe486db35..77bfd49484c3d5389cbedefb7276a2f3f208751e 100644
--- a/FitConnect/SubmissionBuilder.cs
+++ b/FitConnect/SubmissionBuilder.cs
@@ -89,6 +89,9 @@ public interface ISubmissionWithData {
     ISubmissionWithData WithAttachments(params Attachment[] attachments);
     ISubmissionWithData WithAttachments(List<Attachment> attachments);
 
+    ISubmissionWithData WithAttachments(string fileName, string description, string mimeType,
+        FileStream content);
+
 
     SendableSubmission Build();
 }