The 28-year-old played in the reserves' 2-1 defeat to Southampton on Monday night and is expected to play against West Brom at the weekend.
Boss Gary Johnson told the Evening Post: "Ivan is back to work and we're pleased to have him back."
Johnson will also be happy to see first-team regulars Liam Fontaine, Lee Johnson and Gavin Williams, who scored, complete 90 minutes against Saints.
Source: Team_Talk