Chopping blade (10) of a chopping drum of a forage harvester, having a base body (11) which comprises a fastening portion (12) for fastening the chopping blade (10) to the chopping drum and a cutting portion (13) for the harvested crop to be chopped, wherein at least one crop guiding element (15) for guiding the harvested crop is fastened to the inner surface of the fastening portion (12).