--- a/dom/media/AudioStream.cpp
+++ b/dom/media/AudioStream.cpp
@@ -346,17 +346,17 @@ AudioStream::Init(uint32_t aNumChannels,
 
   params.format = ToCubebFormat<AUDIO_OUTPUT_FORMAT>::value;
   mAudioClock.Init(aRate);
 
   cubeb* cubebContext = CubebUtils::GetCubebContext();
   if (!cubebContext) {
     NS_WARNING("Can't get cubeb context!");
     CubebUtils::ReportCubebStreamInitFailure(true);
-    return NS_ERROR_FAILURE;
+    return NS_ERROR_DOM_MEDIA_CUBEB_INITIALIZATION_ERR;
   }
 
   return OpenCubeb(cubebContext, params, startTime, CubebUtils::GetFirstStream());
 }
 
 nsresult
 AudioStream::OpenCubeb(cubeb* aContext, cubeb_stream_params& aParams,
                        TimeStamp aStartTime, bool aIsFirst)