diff --git a/src/blobsets.nim b/src/blobsets.nim
index f57c797..257a7d2 100644
--- a/src/blobsets.nim
+++ b/src/blobsets.nim
@@ -157,7 +157,7 @@ proc read*(s: BlobStream; buf: pointer; len: Natural): Future[int] =
   assert(not s.readImpl.isNil)
   s.readImpl(s, buf, len)
 
-proc cancel*(s: IngestStream): tuple[id: BlobId, size: BiggestInt] =
+proc cancel*(s: IngestStream) =
   ## Cancel and close ingest stream
   assert(not s.cancelImpl.isNil)
   s.cancelImpl(s)