storage/interface.go | 2 +-

diff --git a/storage/interface.go b/storage/interface.go
index c48c6e3405022665113682a324ef347fefd9bedb..271bc7e60b92e2c2ba7c2734ccfd6941adc9db5a 100644
--- a/storage/interface.go
+++ b/storage/interface.go
@@ -18,7 +18,7 @@ }
 
 // Data storage bound to a torrent.
 type TorrentImpl struct {
-	Piece func(metainfo.Piece) PieceImpl
+	Piece func(p metainfo.Piece) PieceImpl
 	Close func() error
 	// Storages that share the same value, will provide a pointer to the same function.
 	Capacity *func() *int64