Republican lawmakers in Tennessee are threatening to block Republican Gov. Bill Haslam’s school voucher bill over fears that Muslim schools could receive funding.

The Knoxville News Sentinel reported on Monday that Haslam hinted that he would withdraw his bill after objections from Republican lawmakers that it was not broad enough and that the vouchers could be used by Islamic schools.

Over the weekend, state Sen. Jim Tracy (R) had told The Murfreesboro Post that he had “considerable concern” that tax dollars could go to schools that teach principles from the Quran.

Tracy, who is on the Senate Education Committee and identifies himself as a member of the Church of Christ, insisted that Islamic school funding was an “an issue we must address” before the voucher bill can go forward.

“I don’t know whether we can simply amend the bill in such a way that will fix the issue at this point,” he said.

On Monday, Tracy told the News Sentinel that his staff had determined that there was at least one Muslim-oriented school — Pleasant View School in Memphis — that would be eligible for vouchers under the governor’s plan.