--- a/dom/media/platforms/gonk/GonkDecoderModule.cpp
+++ b/dom/media/platforms/gonk/GonkDecoderModule.cpp
@@ -35,19 +35,19 @@ GonkDecoderModule::CreateAudioDecoder(co
                            aParams.mCallback);
   return decoder.forget();
 }
 
 PlatformDecoderModule::ConversionRequired
 GonkDecoderModule::DecoderNeedsConversion(const TrackInfo& aConfig) const
 {
   if (aConfig.IsVideo()) {
-    return kNeedAnnexB;
+    return ConversionRequired::kNeedAnnexB;
   } else {
-    return kNeedNone;
+    return ConversionRequired::kNeedNone;
   }
 }
 
 bool
 GonkDecoderModule::SupportsMimeType(const nsACString& aMimeType,
                                     DecoderDoctorDiagnostics* aDiagnostics) const
 {
   return aMimeType.EqualsLiteral("audio/mp4a-latm") ||