Boss Chris Kinnear has added to his defensive options with the loan signing of left-back George Smith from fellow National League club Chesterfield.
The 22-year-old joined the Spireites from Northampton Town for an undisclosed fee in January.
Smith started his career at Barnsley and made 44 appearances for the Tykes, including 25 as they won promotion to the Championship in 2015-16
After leaving Barnsley, he made 38 appearances for Gateshead before signing for Northampton.
He made eight starts and two substitute appearances for the Cobblers.
Smith will wear the number 20 shirt at Crabble.