1. A method for operating a boost pressure control in an engine system having a supercharged internal combustion engine, the method comprising: performing a boost pressure control based on a setpoint controller variable and an actual controller variable; ascertaining a setpoint controller variable from a provided setpoint boost pressure with the aid of a first model and a second model; ascertaining an intermediate variable from a provided actual boost pressure with the aid of the first model; correcting the intermediate variable with the aid of a provided dynamic variable, which represents a dynamic change in the state of the engine system using a higher dynamics than the actual boost pressure; and ascertaining the actual controller variable from the corrected intermediate variable with the aid of the second model.