The current study evaluated the effectiveness of using a modified "TAGteach"™ procedure and correction to decrease toe-walking in a 4-year-old boy with autism. Two conditions were analyzed: correction alone and correction with an audible conditioned reinforcing stimulus. Correction alone produced minimal and inconsistent decreases in toe-walking but correction with an audible conditioned stimulus proved most effective in reducing this behavior. This has implications for decreasing toe-walking in other children with autism and may be easily used by teachers and parents.