diff --git a/libraries/muxer/src/main/java/androidx/media3/muxer/Mp4Writer.java b/libraries/muxer/src/main/java/androidx/media3/muxer/Mp4Writer.java
index f1602e92a9..63a1db2e16 100644
--- a/libraries/muxer/src/main/java/androidx/media3/muxer/Mp4Writer.java
+++ b/libraries/muxer/src/main/java/androidx/media3/muxer/Mp4Writer.java
@@ -77,7 +77,7 @@ import java.util.List;
     public final List<Integer> writtenChunkSampleCounts;
     public final Deque<BufferInfo> pendingSamplesBufferInfo;
     public final Deque<ByteBuffer> pendingSamplesByteBuffer;
-    public boolean hadKeyframe = false;
+    public boolean hadKeyframe;
 
     private long lastSamplePresentationTimeUs;