diff --git a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerSequenceEffectTest.java b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerSequenceEffectTest.java
index 5d4135f821..edac2a7e5a 100644
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerSequenceEffectTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerSequenceEffectTest.java
@@ -262,7 +262,7 @@ public final class TransformerSequenceEffectTest {
         .build();
   }
 
-  static void assertBitmapsMatchExpected(List<Bitmap> actualBitmaps, String testId)
+  private static void assertBitmapsMatchExpected(List<Bitmap> actualBitmaps, String testId)
       throws IOException {
     for (int i = 0; i < actualBitmaps.size(); i++) {
       Bitmap actualBitmap = actualBitmaps.get(i);