3 files changed, 6 insertions, 6 deletions
diff --git a/core/shared/src/main/scala/interface.scala b/core/shared/src/main/scala/interface.scala
index 6eea9f1..af4fb51 100644
--- a/core/shared/src/main/scala/interface.scala
+++ b/core/shared/src/main/scala/interface.scala
@@ -21,7 +21,7 @@ import scala.annotation.tailrec
   *
   *  @tparam Typeclass  type constructor for the typeclass being derived
   *  @tparam Type       generic type of this parameter */
-trait Subtype[Typeclass[_], Type] {
+trait Subtype[Typeclass[_], Type] extends Serializable {
 
   /** the type of subtype */
   type SType <: Type
@@ -47,7 +47,7 @@ trait Subtype[Typeclass[_], Type] {
   *
   *  @tparam Typeclass  type constructor for the typeclass being derived
   *  @tparam Type       generic type of this parameter */
-trait Param[Typeclass[_], Type] {
+trait Param[Typeclass[_], Type] extends Serializable {
 
   /** the type of the parameter being represented
     *
@@ -136,7 +136,7 @@ abstract class CaseClass[Typeclass[_], Type] private[magnolia] (
   val isValueClass: Boolean,
   parametersArray: Array[Param[Typeclass, Type]],
   annotationsArray: Array[Any]
-) {
+) extends Serializable {
 
   override def toString: String = s"CaseClass(${typeName.full}, ${parameters.mkString(",")})"
   /** constructs a new instance of the case class type
@@ -196,7 +196,7 @@ final class SealedTrait[Typeclass[_], Type](
   val typeName: TypeName,
   subtypesArray: Array[Subtype[Typeclass, Type]],
   annotationsArray: Array[Any]
-) {
+) extends Serializable {
 
   override def toString: String = s"SealedTrait($typeName, Array[${subtypes.mkString(",")}])"
 
diff --git a/core/shared/src/main/scala/magnolia.scala b/core/shared/src/main/scala/magnolia.scala
index 1bdd7db..9190c1d 100644
--- a/core/shared/src/main/scala/magnolia.scala
+++ b/core/shared/src/main/scala/magnolia.scala
@@ -333,7 +333,7 @@ object Magnolia {
         }})}))
           }""")
       } else if (isSealedTrait) {
-        val genericSubtypes = classType.get.knownDirectSubclasses.to[List]
+        val genericSubtypes = classType.get.knownDirectSubclasses.toList
         val subtypes = genericSubtypes.map { sub =>
           val subType = sub.asType.toType // FIXME: Broken for path dependent types
           val typeParams = sub.asType.typeParams
diff --git a/examples/shared/src/main/scala/decode.scala b/examples/shared/src/main/scala/decode.scala
index 5838905..16ccbcd 100644
--- a/examples/shared/src/main/scala/decode.scala
+++ b/examples/shared/src/main/scala/decode.scala
@@ -78,7 +78,7 @@ object Decoder {
     }
 
     def keyValue(str: String): (String, String) = {
-      val List(label, value) = str.split("=", 2).to[List]
+      val List(label, value) = str.split("=", 2).toList
       (label, value)
     }