diff --git a/dom/media/MediaDecoder.cpp b/dom/media/MediaDecoder.cpp
index 8eb8ee98d8a0..82f4ed7e6108 100644
--- a/dom/media/MediaDecoder.cpp
+++ b/dom/media/MediaDecoder.cpp
@@ -642,7 +642,6 @@ double MediaDecoder::GetCurrentTime() {
 void MediaDecoder::OnMetadataUpdate(TimedMetadata&& aMetadata) {
   MOZ_ASSERT(NS_IsMainThread());
   AbstractThread::AutoEnter context(AbstractMainThread());
-  GetOwner()->RemoveMediaTracks();
   MetadataLoaded(MakeUnique<MediaInfo>(*aMetadata.mInfo),
                  UniquePtr<MetadataTags>(std::move(aMetadata.mTags)),
                  MediaDecoderEventVisibility::Observable);