diff --git a/src/Handler/Utils/Submission.hs b/src/Handler/Utils/Submission.hs
index c7280bc7e..28a8a3abc 100644
--- a/src/Handler/Utils/Submission.hs
+++ b/src/Handler/Utils/Submission.hs
@@ -515,4 +515,4 @@ submissionMatchesSheet tid csh shn cid = do
   shid <- fetchSheetId tid csh shn
   Submission{..} <- get404 sid
   when (shid /= submissionSheet) $ invalidArgsI [MsgSubmissionWrongSheet]
-  return sid
+  return sid
\ No newline at end of file