Read boolean from checkbox in Jade, NodeJS

I'm using NodeJs with Express, Jade, MongoDB, Mongoose etc.

So I have a form with a checkbox that gets POSTed in an object in my mongoDB database using Mongoose as a Boolean, true or false.

.checkbox
        input(type="checkbox", name="roundTrip", checked=(true || false))

I'm trying to use Jade to display a list of all the objects in my collection, so I passed in the an array of the objects to my '/ridelist' using res.render called rides.

But when I try to us an if statement in Jade to read the status of the checkbox, I get errors and it doesn't seem to work.

Here is what I want to do, but doesn't work:

h1.
        List of Rides
    ul
        each ride in rides
            li
                p Destination: #{ride.destination}
                p Departure: #{ride.dateLeaving} 
                p Round Trip: #{ride.roundTrip}
                if #{ride.roundTrip}     //- THIS GIVES ME AN ERROR
                    p Time departing for return: #{ride.dateReturning}

Without the last two lines it renders like:

List of Rides Destination: Santa Cruz Departure: Friday 5pm Round Trip: true Destination: Chico Departure: Saturday 4am Round Trip: false

But the if statement is messing me up.