1 files changed, 2 insertions, 1 deletions
diff --git a/dom/media/MediaData.cpp b/dom/media/MediaData.cpp
index fb3eff7b51..5b68200eff 100644
--- a/dom/media/MediaData.cpp
+++ b/dom/media/MediaData.cpp
@@ -76,7 +76,8 @@ AudioData::TransferAndUpdateTimestampAndDuration(AudioData* aOther,
                                       aOther->mFrames,
                                       Move(aOther->mAudioData),
                                       aOther->mChannels,
-                                      aOther->mRate);
+                                      aOther->mRate,
+				      aOther->mChannelMap);
   return v.forget();
 }