diff --git a/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java b/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java
index d12013673f..f88371f36d 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/offline/DownloadHelper.java
@@ -834,6 +834,8 @@ public final class DownloadHelper {
                 /* startPositionUs= */ 0);
         mediaPeriods[i] = mediaPeriod;
         pendingMediaPeriods.add(mediaPeriod);
+      }
+      for (MediaPeriod mediaPeriod : mediaPeriods) {
         mediaPeriod.prepare(/* callback= */ this, /* positionUs= */ 0);
       }
     }