diff --git a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java
index 9b77293a5a..dd30341210 100644
--- a/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java
+++ b/library/hls/src/main/java/com/google/android/exoplayer2/source/hls/offline/HlsDownloadHelper.java
@@ -74,6 +74,7 @@ public final class HlsDownloadHelper extends DownloadHelper {
   public TrackGroupArray getTrackGroups(int periodIndex) {
     Assertions.checkNotNull(playlist);
     if (playlist instanceof HlsMediaPlaylist) {
+      renditionGroups = new int[0];
       return TrackGroupArray.EMPTY;
     }
     // TODO: Generate track groups as in playback. Reverse the mapping in getDownloadAction.