A bin wall cleaner for a sweep conveyors and augers for removing residual grain located near the bin wall out of reach of the sweep conveyor and providing sweep coverage for non-uniform bin walls. The bin wall cleaner has a grain engagement member that extends outwardly from the distal end of the sweep. A biasing member maintains the grain engagement member extended toward the bin wall. A wall engagement member is attached to the grain engagement member to ensure the bin wall cleaner tracks with the bin wall. The grain engagement member extends by pivoting or telescoping at least one blade.