Peter Thompson's 63rd-minute strike and a late shot by substitute Rory Patterson gave Irish Premiership leaders Linfield victory over Glenavon.
Thompson, recently back after illness, pounced to shoot a good low shot past keeper David O'Hare after Jay Magee had been dispossessed.
Patterson was just on as Thompson's replacement when he got the second.
Before the goals, O'Hare made saves from Billy Jo Burns, Robert Garrett and Aaron Burns in a low key encounter.
Linfield had struggled to make the breakthrough until Thompson took full advantage of Magee's slip in midfield.
On 88 minutes Patterson was is played onside by Cameron Grieve and he made no mistake with only O'Hare to beat.
The result put David Jeffrey's side five points clear at the top of the table as second-placed Portadown do not play until Monday when they host Crusaders.
"We played excellently in the second half," said boss Jeffrey.
"The first half was a bit of a struggle. We had lots of the ball and probed but did not test their keeper too often.
"We changed our shape in the second half because I think teams are working out the best way to play against us at Windsor Park."