diff --git a/media/libcubeb/README_MOZILLA b/media/libcubeb/README_MOZILLA
index 0486023b318..a928be0e2e2 100644
--- a/media/libcubeb/README_MOZILLA
+++ b/media/libcubeb/README_MOZILLA
@@ -5,4 +5,4 @@ Makefile.in build files for the Mozilla build system.
 
 The cubeb git repository is: git://github.com/kinetiknz/cubeb.git
 
-The git commit ID used was 2de1ab50e16763fd88ec1b5bae30422de598eed0.
+The git commit ID used was 2d8fc9358505cd87c5596cff142f1dc497e2a1ff.
diff --git a/media/libcubeb/src/cubeb_sndio.c b/media/libcubeb/src/cubeb_sndio.c
index 66e5838ec80..34110d16f22 100644
--- a/media/libcubeb/src/cubeb_sndio.c
+++ b/media/libcubeb/src/cubeb_sndio.c
@@ -103,7 +103,7 @@ sndio_mainloop(void *arg)
         break;
       }
       pthread_mutex_unlock(&s->mtx);
-      nfr = s->data_cb(s, s->arg, s->buf, s->nfr);
+      nfr = s->data_cb(s, s->arg, NULL, s->buf, s->nfr);
       pthread_mutex_lock(&s->mtx);
       if (nfr < 0) {
         DPR("sndio_mainloop() cb err\n");