Defender heads back to Ashton Gate.
Bristol are next in action on Tuesday night against Swindon Town.
Although he was back on the bench for the weekend win at Port Vale, injuries at City in their draw at Oldham on Friday has seen the Robins recall the 27-year-old.
The centre half played four times for the U's, before injury cut short his time in the team.
Bristol City have recalled defender Karleigh Osborne from his loan spell at Colchester United.