Wrong storage path with DNS1D::getBarcodePNGPath

[InfoO2]

I think the code missing a backslash, example storage path from barcode:

Code:
DNS1D::getBarcodePNGPath(strval($row->id), 'C39', 2.5, 70);
Storage path:
\storage\studentqr14980758.png

It is right for qrcode:
DNS2D::getBarcodePNGPath(strval($row->id), 'QRCODE', 20, 20);
Path:
\storage\studentqr\14980886qrcode.png