2 files changed, 2 insertions, 3 deletions
diff --git a/test/files/scalacheck/CheckEither.scala b/test/files/scalacheck/CheckEither.scala
index 0145d3321f..4e8480d72e 100644
--- a/test/files/scalacheck/CheckEither.scala
+++ b/test/files/scalacheck/CheckEither.scala
@@ -3,7 +3,6 @@ import org.scalacheck.Arbitrary.{arbitrary, arbThrowable}
 import org.scalacheck.Gen.oneOf
 import org.scalacheck.util.StdRand
 import org.scalacheck.Prop._
-import org.scalacheck.ConsoleReporter.{testReport, propReport}
 import org.scalacheck.Test.{Params, check}
 import org.scalacheck.ConsoleReporter.testStatsEx
 import Function.tupled
diff --git a/test/files/scalacheck/redblacktree.scala b/test/files/scalacheck/redblacktree.scala
index e4b356c889..e2609fa200 100644
--- a/test/files/scalacheck/redblacktree.scala
+++ b/test/files/scalacheck/redblacktree.scala
@@ -121,7 +121,7 @@ package scala.collection.immutable.redblacktree {
 
     override type ModifyParm = Int
     override def genParm(tree: Tree[String, Int]): Gen[ModifyParm] = choose(0, iterator(tree).size + 1)
-    override def modify(tree: Tree[String, Int], parm: ModifyParm): Tree[String, Int] = update(tree, generateKey(tree, parm), 0)
+    override def modify(tree: Tree[String, Int], parm: ModifyParm): Tree[String, Int] = update(tree, generateKey(tree, parm), 0, true)
 
     def generateKey(tree: Tree[String, Int], parm: ModifyParm): String = nodeAt(tree, parm) match {
       case Some((key, _)) => key.init.mkString + "MN"
@@ -144,7 +144,7 @@ package scala.collection.immutable.redblacktree {
     override type ModifyParm = Int
     override def genParm(tree: Tree[String, Int]): Gen[ModifyParm] = choose(0, iterator(tree).size)
     override def modify(tree: Tree[String, Int], parm: ModifyParm): Tree[String, Int] = nodeAt(tree, parm) map {
-      case (key, _) => update(tree, key, newValue)
+      case (key, _) => update(tree, key, newValue, true)
     } getOrElse tree
 
     property("update modifies values") = forAll(genInput) { case (tree, parm, newTree) =>