--- a/dom/media/moz.build
+++ b/dom/media/moz.build
@@ -309,16 +309,19 @@ if CONFIG['MOZ_WEBRTC']:
 DEFINES['MOZILLA_INTERNAL_API'] = True
 
 if CONFIG['MOZ_OMX_DECODER']:
     DEFINES['MOZ_OMX_DECODER'] = True
 
 if CONFIG['ANDROID_VERSION'] > '15':
     DEFINES['MOZ_OMX_WEBM_DECODER'] = True
 
+if CONFIG['MOZ_GONK_MEDIACODEC']:
+    DEFINES['MOZ_GONK_MEDIACODEC'] = True
+
 CFLAGS += CONFIG['GSTREAMER_CFLAGS']
 CXXFLAGS += CONFIG['GSTREAMER_CFLAGS']
 
 include('/ipc/chromium/chromium-config.mozbuild')
 
 # Suppress some GCC warnings being treated as errors:
 #  - about attributes on forward declarations for types that are already
 #    defined, which complains about an important MOZ_EXPORT for android::AString