diff --git a/io/native/src/main/scala/fs2/io/ioplatform.scala b/io/native/src/main/scala/fs2/io/ioplatform.scala
index 919246af1c..4cb63d98ad 100644
--- a/io/native/src/main/scala/fs2/io/ioplatform.scala
+++ b/io/native/src/main/scala/fs2/io/ioplatform.scala
@@ -43,7 +43,7 @@ import scala.scalanative.unsigned._
 private[fs2] trait ioplatform extends iojvmnative {
 
   private[io] val PathStreamChunkSize =
-    1 // FIXME https://github.com/scala-native/scala-native/issues/4431
+    16
 
   private[fs2] def fileDescriptorPoller[F[_]: LiftIO]: F[FileDescriptorPoller] =
     IO.pollers
diff --git a/io/shared/src/test/scala/fs2/io/file/FilesSuite.scala b/io/shared/src/test/scala/fs2/io/file/FilesSuite.scala
index c25807188d..ed7e1503f3 100644
--- a/io/shared/src/test/scala/fs2/io/file/FilesSuite.scala
+++ b/io/shared/src/test/scala/fs2/io/file/FilesSuite.scala
@@ -545,18 +545,8 @@ class FilesSuite extends Fs2Suite with BaseFileSuite {
       Stream
         .resource(tempFile)
         .flatMap { p =>
-          Files[IO].list(p).void.recover {
-            // java.io.UncheckedIOException is unavailable in Scala.js
-            case e: RuntimeException if isNative =>
-              e.getCause match {
-                case ex: NotDirectoryException =>
-                  assertEquals(ex.getMessage, p.toString)
-                case other =>
-                  fail(s"Unexpected error $other")
-              }
-
-            case ex: NotDirectoryException =>
-              assertEquals(ex.getMessage, p.toString)
+          Files[IO].list(p).void.recover { case ex: NotDirectoryException =>
+            assertEquals(ex.getMessage, p.toString)
           }
         }
         .compile
diff --git a/project/plugins.sbt b/project/plugins.sbt
index bf99e649af..24d3df3fed 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -2,7 +2,7 @@ val sbtTypelevelVersion = "0.8.1"
 addSbtPlugin("org.typelevel" % "sbt-typelevel" % sbtTypelevelVersion)
 addSbtPlugin("org.typelevel" % "sbt-typelevel-site" % sbtTypelevelVersion)
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.20.1")
-addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.8")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.9")
 addSbtPlugin("com.armanbilge" % "sbt-scala-native-config-brew-github-actions" % "0.4.0")
 addSbtPlugin("io.github.sbt-doctest" % "sbt-doctest" % "0.12.2")
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.4.8")