diff --git a/library/transformer/src/main/java/com/google/android/exoplayer2/transformer/ExoPlayerAssetLoader.java b/library/transformer/src/main/java/com/google/android/exoplayer2/transformer/ExoPlayerAssetLoader.java
index 59d321e225..46250ce4b6 100644
--- a/library/transformer/src/main/java/com/google/android/exoplayer2/transformer/ExoPlayerAssetLoader.java
+++ b/library/transformer/src/main/java/com/google/android/exoplayer2/transformer/ExoPlayerAssetLoader.java
@@ -163,7 +163,8 @@ public final class ExoPlayerAssetLoader implements AssetLoader {
             .setMediaSourceFactory(mediaSourceFactory)
             .setTrackSelector(trackSelector)
             .setLoadControl(loadControl)
-            .setLooper(looper);
+            .setLooper(looper)
+            .setUsePlatformDiagnostics(false);
     if (clock != Clock.DEFAULT) {
       // Transformer.Builder#setClock is also @VisibleForTesting, so if we're using a non-default
       // clock we must be in a test context.