diff --git a/internal/media/muxer.go b/internal/media/muxer.go
index f061586..b6a6f2d 100644
--- a/internal/media/muxer.go
+++ b/internal/media/muxer.go
@@ -1,6 +1,7 @@
 package media
 
 import (
+	"errors"
 	"io"
 	"reflect"