The 50th-minute effort proved crucial in a game where Jackett's side held off the visitors and restricted them from having a shot on target.
Jackett said: '˜It was a comprehensive and well-deserved 1-0 win.
'˜We're pleased, if it's a tight game, that we have that quality moment.
'˜We won the first header from the corner and had our centre-forward finishing it off on the line, which is good to see.
'˜That's his job and it was a crucial moment.
'˜We had a good enough delivery and timing to make sure we got there.
'˜Then defensively we were very sound and saw it out very well.'