--- a/dom/media/MediaDecoderReader.h
+++ b/dom/media/MediaDecoderReader.h
@@ -225,17 +225,17 @@ public:
   // decoding.
   virtual bool VideoIsHardwareAccelerated() const { return false; }
 
   TimedMetadataEventSource& TimedMetadataEvent()
   {
     return mTimedMetadataEvent;
   }
 
-  // Notified by the OggReader during playback when chained ogg is detected.
+  // Notified by the OggDemuxer during playback when chained ogg is detected.
   MediaEventSource<void>& OnMediaNotSeekable() { return mOnMediaNotSeekable; }
 
   TimedMetadataEventProducer& TimedMetadataProducer()
   {
     return mTimedMetadataEvent;
   }
 
   MediaEventProducer<void>& MediaNotSeekableProducer()