The Reading forward, who scored his second goal of his loan spell in the 3-0 win over Bradford yesterday, will stay with the Millers for the home games againast Swindon and Port Vale.
He is also available for the trip to Dagenham on January 28th.
Part of his initial loan, which expired on December 31st, was cut short due to injury when he had to return to Berkshire for treatment on his ankle.
We wish Brett continued success with the club during his stay.