Kids have a way of figuring out how to do exactly what they shouldn’t, which is why car seat maker Evenflo is recalling about 30,000 booster seats over concern that some children have figured out how to loosen the harness all by themselves.

The company says the voluntary recall — issued in conjunction with the National Highway Traffic Safety Administration [PDF] — involves select models of Evolve 3-in-1 seats: seats manufactured prior to Feb. 9, 2016, with the following model numbers: 34411700 (US), 34411741 (US), 34411700C (Canada).

If the harness comes loose, it could increase the risk of injury. Evenflo has received 27 complaints of children pulling a Houdini act so far, but there have been no reports of injuries.

“Evenflo identified a trend in complaints regarding use of the seat in harnessed mode through its regular review of consumer feedback,” the company says.

Evenflo says it will notify registered owners and supply a remedy kit at no cost, which will prevent child access and activation of the harness adjustment button. The recall is slated to begin on Sept. 26.

“Child safety is at the forefront of every decision we make,” said Sarah Haverstick, Evenflo Safety Advocate. “In conjunction with the National Highway Traffic Safety Administration and Transport Canada, we are working to ensure all owners are aware of the voluntary campaign.”

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