diff --git a/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSimpleExoPlayer.java b/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSimpleExoPlayer.java
index dc4f191885..58f19ace1e 100644
--- a/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSimpleExoPlayer.java
+++ b/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSimpleExoPlayer.java
@@ -513,7 +513,7 @@ public class FakeSimpleExoPlayer extends SimpleExoPlayer {
       }
     }
 
-    private void stop(boolean quitPlaybackThread) {
+    private void stop(final boolean quitPlaybackThread) {
       playbackHandler.post(new Runnable() {
         @Override
         public void run () {