The Scot, who scored once in five games, has been recalled by Ian Holloway after his initial 28 day loan with the Millers came to an end.
Harris put on some excellent displays including Tuesdays win over Morecambe where he was arguably man of the match.
Chief Operating Officer Paul Douglas told the clubs website. “The plan was to extend his stay but unfortunately Blackpool have requested that he returns to the club.
“Bob has been an excellent temporary acquisition and I’m sure the reports that Blackpool receive back from Steve Evans will be very positive."
MillersMAD wish Bob all the best in his career and thank him for his services.
Meanwhile Laurie Wilson came through yesterdays reserves game at Walsall after injury and is in contention to replace Harris for Saturdays game against Plymouth.