Brian Wilson's second-half double helped Cheltenham see off Lincoln City and claim their third straight win.
Steve Guinan put the Robins ahead from the edge of the area but Paul Mayo levelled for the Imps when he drilled his shot home from a narrow angle.
Wilson restored Cheltenham's lead with two goals in three minutes - with JJ Melligan the provider each time.
And substitute Steve Gillespie made it 4-1 in injury time, latching on to Grant McCann's pass to fire home.
Cheltenham: Higgs, Gill, Caines, Duff (Bird 90), Victory, Melligan, Armstrong, McCann, Wilson, Odejayi (Gillespie 87), Guinan (Spencer 74).
Subs Not Used: Finnigan, Brown.
Booked: Wilson, Odejayi.
Goals: Guinan 31, Wilson 64, 66, Gillespie 90.
Lincoln City: Marriott, Beevers (Asamoah 68), McAuley, Morgan, McCombe, Mayo, Kerr, Foster, Brown (Robinson 80), Birch, Logan (Hughes 72).
Subs Not Used: Green, Bloomer.
Booked: McAuley.
Goals: Mayo 60.
Att: 3,078
Ref: Paul Taylor (Hertfordshire).