diff --git a/container/mts/payload.go b/container/mts/payload.go
index e5b5dd6b..ee6f0190 100644
--- a/container/mts/payload.go
+++ b/container/mts/payload.go
@@ -148,7 +148,7 @@ func (c *Clip) Bytes() []byte {
 	return c.backing
 }
 
-// Errors used in BytesForPTSInterval.
+// Errors used in TrimToPTSRange.
 var (
 	errPTSLowerBound = errors.New("PTS 'from' cannot be found")
 	errPTSUpperBound = errors.New("PTS 'to' cannot be found")