diff --git a/low/data/reader.go b/low/data/reader.go
index df95bed..e556369 100644
--- a/low/data/reader.go
+++ b/low/data/reader.go
@@ -41,6 +41,7 @@ func (r *Reader) advance() error {
 		r.dat, err = io.ReadAll(r.frag)
 		return err
 	} else if r.curIndex >= uint64(len(r.sizes)) {
+		r.dat = []byte{}
 		return io.EOF
 	}
 	realSize := r.sizes[r.curIndex] &^ (1 << 24)