The invention relates to a locking strip, in particular a locking strip for equipping with a door opener as required, for a door lock, wherein an upper part (4) is provided when a door opener is not present, wherein the door opener has an opener latch with a blocking nose (6) or, when using the upper part (4), the lower part (5) has a blocking nose (6) and the door lock has a lock latch which can be pressed back and which, in the pressed-forward locking position, engages through a passage opening in the front side of the strip and engages behind the blocking nose (6), and at least one sliding web (7), which is angled at a predetermined inclination from one opening edge, for the lock latch is arranged in the passage opening and engages through a latch aperture in the opener latch or of the upper part (4), wherein the sliding web (7) is arranged integrally on the upper part (4) which is mounted below the locking strip, and the upper part (4) offers a fastening receptacle for the lower part (5). To produce a hig