The States voted to keep the schools open in January
The States should be forced to debate the future of two primary schools again, a member of Guernsey's Education Department says.
Deputy Matt Fallaize said if Education had previously proposed to close both it would be able to at least shut one.
The States voted to keep both St Andrew's Primary and St. Sampson's Infants schools open in January.
The fundamental spending review said the island's government could save £4.5m by shutting them.
Tribal Consultancy spent several months carrying out a review and produced a list of more than 100 areas where the States could be more efficient.
Deputy Fallaize said he planned to place an amendment ahead of the Fundamental Spending Review debate in October.
If passed it would put in place a system where departments that did not look into the savings proposed in the review could be forced to do so by the Policy Council.