diff --git a/library/core/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java b/library/core/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java
index 17cf118ea3..338c708864 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java
@@ -729,7 +729,7 @@ public class SimpleExoPlayer implements ExoPlayer {
   }
 
   @Override
-  public void setPlaybackParameters(PlaybackParameters playbackParameters) {
+  public void setPlaybackParameters(@Nullable PlaybackParameters playbackParameters) {
     player.setPlaybackParameters(playbackParameters);
   }