client.go | 2 +-
 misc.go   | 5 ++++-

diff --git a/client.go b/client.go
index 6aaf5669055583f2726c180976ad2130ea11aa9f..d4f8640e68e6883ab9f8b42131c06fe515a6d558 100644
--- a/client.go
+++ b/client.go
@@ -64,7 +64,7 @@ 	// include ourselves if we end up trying to connect to our own address
 	// through legitimate channels.
 	dopplegangerAddrs map[string]struct{}
 	badPeerIPs        map[string]struct{}
-	torrents          map[metainfo.Hash]*Torrent
+	torrents          map[InfoHash]*Torrent
 
 	acceptLimiter map[ipStr]int
 }
diff --git a/misc.go b/misc.go
index bab40e1721952fd936e1625d4004e8c41ec44db2..ecf91788fcd748dbe9fb6d597f739a170b56d5d5 100644
--- a/misc.go
+++ b/misc.go
@@ -169,4 +169,7 @@ }
 
 var unlimited = rate.NewLimiter(rate.Inf, 0)
 
-type pieceIndex = int
+type (
+	pieceIndex = int
+	InfoHash   = metainfo.Hash
+)