Former All Black centre Luke McAlister kicked four penalties and a conversion to help Toulouse along to a 19-9 Top 14 win over Lyon.
The defending champions bounced back after last week's loss to Bayonne against newly promoted Lyon to go sixth in the Top 14 standings.
With 30,000 fans watching in driving rain, Toulouse inflicted Lyon's second successive defeat leaving the hosts second from the bottom of the table.
The visitors took an early lead with two penalties from McAlister. Yves Donguy then crossed the line with McAlister converting to put Toulouse 13-3 up at half-time.
McAlister added two more penalties in the second half with Lyon's points all coming from the boot of former Wasps full-back Mark Van Gisbergen.
Pens: Van Gisbergen 3
Pens: McAlister 4