Attempt at a linklist implementation in scala

LinkedList.scala

case class Node(val  data : Int, val next : Option[Node])
{
  override def toString(): String = "node "+data
}
def printLinkedList (  node : Option[Node] ) : String  ={
  node match {
    case None =>  
    case Node(data, next) => data+" "+printLinkedList(next)
  }
}