Value === is not a member of a parameter of type TKey (using Squeryl)

I am trying to write a simple BaseDao class using the excellent ORF framework.

However, I ran into a problem when using generic typed keys. I get a compilation error when I try to use the '===' operator in my common BaseDao class. Compilation error: value === is not a member of a parameter of type TKey

My dao class with its hard method is defined as:

import org.squeryl.PrimitiveTypeMode._
import org.squeryl._

abstract class BaseDao[TKey, T <: BaseEntity[TKey]](val table: Table[T]) {

  def delete(entity: T) : Boolean = {
    table.deleteWhere(record => record.id === entity.id) //This is where I get the compile error
  }
}

BaseEntity is defined as:

abstract class BaseEntity[TKey] extends KeyedEntity[TKey]

I import PrimitiveTypeMode into my Dao class too ... My first was that TKey needed to be limited to what the === operator was attached to, but looking at the source, there are no explicit restrictions around the operator, so I'm a little lost .

squeryl : https://github.com/max-l/Squeryl/blob/master/src/main/scala/org/squeryl/dsl/TypedExpression.scala