Maik Taylor's parent club Leeds have granted Millwall permission for the on-loan goalkeeper to feature when the Whites visit The Den on Saturday.
The veteran keeper was snapped up by Lions boss Kenny Jackett until the end of the season last week to provide cover for the injured Steve Mildenhall.
The 40-year-old instantly ousted David Forde as Millwall's first-choice shot-stopper and kept a clean sheet on his second appearance against Doncaster on Tuesday.
Taylor was expected to be ruled ineligible to feature against Leeds this weekend but Whites manager Neil Warnock has allowed him to take part.
Leeds make the long trip south on the back of their humiliating 7-3 defeat to struggling Nottingham Forest on Tuesday, but Taylor said: I'm sure that was just a blip because Leeds have been going great guns up until now."
The keeper also conceded that he had little chance of replacing Andy Lonergan in the senior ranks at Leeds, adding: "Andy's a great lad. I never got an opportunity because he was doing so well."