diff --git a/libraries/test_utils/src/main/java/androidx/media3/test/utils/StubPlayer.java b/libraries/test_utils/src/main/java/androidx/media3/test/utils/StubPlayer.java
index 85569df265..5774398d63 100644
--- a/libraries/test_utils/src/main/java/androidx/media3/test/utils/StubPlayer.java
+++ b/libraries/test_utils/src/main/java/androidx/media3/test/utils/StubPlayer.java
@@ -70,7 +70,7 @@ public class StubPlayer extends BasePlayer {
   }
 
   @Override
-  public PlaybackException getPlayerError() {
+  public @Nullable PlaybackException getPlayerError() {
     throw new UnsupportedOperationException();
   }