diff --git a/vector/src/main/scala/geotrellis/vector/prepared/PreparedGeometry.scala b/vector/src/main/scala/geotrellis/vector/prepared/PreparedGeometry.scala
index 6c62e394d3..64e8ee1d7e 100644
--- a/vector/src/main/scala/geotrellis/vector/prepared/PreparedGeometry.scala
+++ b/vector/src/main/scala/geotrellis/vector/prepared/PreparedGeometry.scala
@@ -24,7 +24,7 @@ import com.vividsolutions.jts.geom.prep.PreparedGeometryFactory
   * performance enhancements to operations over those geometries. See Chris Bennight's
   * [[https://github.com/chrisbennight/intersection-test writeup and benchmarks]] for more.
   */
-case class PreparedGeometry[G <: Geometry](val geom: Geometry) {
+case class PreparedGeometry[G <: Geometry](val geom: Geometry) extends Serializable {
   private val prepared = PreparedGeometry.factory.create(geom.jtsGeom)
   def contains(that: Geometry): Boolean =
     prepared.contains(that.jtsGeom)
@@ -59,6 +59,6 @@ case class PreparedGeometry[G <: Geometry](val geom: Geometry) {
 
 /** Companion object to [[PreparedGeometry]] */
 object PreparedGeometry {
-  private val factory = new PreparedGeometryFactory 
+  private val factory = new PreparedGeometryFactory
 }