client.go | 2 +-
 t.go      | 6 ++++++

diff --git a/client.go b/client.go
index aaa2ee4da7e9c19e49e894f9b668aa2e4ecb4b47..8621d16425bb65a0adab5e1f1a65867fd95bfff0 100644
--- a/client.go
+++ b/client.go
@@ -1979,7 +1979,7 @@ 	t.Trackers = newTrackers
 }
 
 // Don't call this before the info is available.
-func (t *torrent) BytesCompleted() int64 {
+func (t *torrent) bytesCompleted() int64 {
 	if !t.haveInfo() {
 		return 0
 	}
diff --git a/t.go b/t.go
index 419258600a6ca1aedd800dd809c147950a877e6a..8a561661e2198208eaeb601e3b1a4fc82d790aeb 100644
--- a/t.go
+++ b/t.go
@@ -52,3 +52,9 @@ 	t.cl.mu.Lock()
 	t.cl.dropTorrent(t.InfoHash)
 	t.cl.mu.Unlock()
 }
+
+func (t Torrent) BytesCompleted() int64 {
+	t.cl.mu.RLock()
+	defer t.cl.mu.RUnlock()
+	return t.bytesCompleted()
+}