Illinois is one of two states with strict laws banning companies from collecting personal data without your consent. But, a new proposal could take that protection away.

Changes to the 10-year-old Illinois Biometric InformationPrivacy Act would allow companies to collect their employees’ fingerprints, face scans, and even iris scans without permission.

Those lawmakers behind the measure say that it will help small businesses keep better track of workers’ hours, saving the business thousands of dollars.

Companies like Nest, for example, which sells smart thermostats and doorbells, sells a doorbell with a camera that can recognize visitors by their faces. But, due to the Illinois biometrics law, that feature is not available on Nest products sold within the state.

Critics say it’s a major invasion of privacy. Lawmakers hope to reach a compromise on the bill by the end of April.