diff --git a/types.go b/types.go
index bd470e7..c025fd2 100644
--- a/types.go
+++ b/types.go
@@ -442,6 +442,10 @@ func readSubStreamsInfo(r util.Reader, folder []*folder) (*subStreamsInfo, error
 		k := 0
 
 		for i := range s.streams {
+			if s.streams[i] == 0 {
+				continue
+			}
+
 			total := uint64(0)
 
 			for j := uint64(1); j < s.streams[i]; j++ {