Ady Pennock’s men will make the short trip to Essex for a third fixture in the space of seven days prior to the new league season which starts on Saturday August 5.
This completes the club’s pre-season programme with matches already organised against Faversham Town, Dartford, Dover, Chatham, Ipswich, Patro Eisden and Canvey Island.
The two teams last met in a League One fixture on December 28 2015 when a second half goal from Dominic Samuel was enough to give Gills all three points in a 1-0 win at MEMS Priestfield Stadium.
Ticket information for this fixture will be announced in due course. Kick-off is scheduled for 7.30pm.