--- a/dom/media/MediaFormatReader.h
+++ b/dom/media/MediaFormatReader.h
@@ -350,17 +350,17 @@ private:
       mDecodeRequest.DisconnectIfExists();
       mDrainRequest.DisconnectIfExists();
       mDrainState = DrainState::None;
       CancelWaitingForKey();
       mOutput.Clear();
       mNumSamplesInput = 0;
       mNumSamplesOutput = 0;
       mSizeOfQueue = 0;
-      if (mDecoder && !mFlushed) {
+      if (mDecoder) {
         RefPtr<MediaFormatReader> owner = mOwner;
         TrackType type = mType == MediaData::AUDIO_DATA
                          ? TrackType::kAudioTrack
                          : TrackType::kVideoTrack;
         mFlushing = true;
         mDecoder->Flush()
           ->Then(mOwner->OwnerThread(), __func__,
                  [owner, type, this]() {