Large gap in template alignment with I tasser

Hello, I'm having an issue with modeling an enzyme that shows a large gap in the template alignment. The issue is that the I-tasser alignment contains a ~20 residue gap which appears as a large unrealistic loop sticking out of the final model. Other than this issue, the models returned have been remarkably realistic, and I'm just wondering if there's a way to deal with this large loop. Perhaps someone with more modeling experience has a solution. Thanks!