How to pass switch parameter through Invoke-Command?

I’ve tried:

Invoke-Command -ComputerName RemotePC -filepath C:myscript.ps1 -ArgumentList param1, switchparam:$true Invoke-Command -ComputerName RemotePC -filepath C:myscript.ps1 -ArgumentList param1, $true Invoke-Command -ComputerName RemotePC -filepath C:myscript.ps1 -ArgumentList param1, switchparam 

But all fail with a positional parameter cannot be found

Can this be done?