Adrien Thibaut's first League Two goal of the campaign secured Crewe a 1-0 home win over Gillingham, settling a tight contest in the second half.
The substitute struck in the 64th minute, with the Railwaymen's success being their third in the last four games as they moved into the play-off places, up to seventh.
Tight Contest, Half-Chances Wasted
Early on Tommi O'Reilly's cross was scrambled away from Josh March before Robbie McKenzie wasted a good shooting chance for the visitors, screwing an effort wide after Ronan Hale's pass played the midfielder through the middle. McKenzie then made a vital intervention to dispossess Calum Agius as the attacker shaped to shoot.