diff --git a/ext/libav/gstavdemux.c b/ext/libav/gstavdemux.c
index bbe5d8ea21..bee67a5237 100644
--- a/ext/libav/gstavdemux.c
+++ b/ext/libav/gstavdemux.c
@@ -1000,6 +1000,7 @@ gst_ffmpegdemux_get_stream (GstFFMpegDemux * demux, AVStream * avstream)
   gst_pad_push_event (pad, gst_event_new_stream_start (stream_id));
   g_free (stream_id);
 
+  GST_INFO_OBJECT (pad, "adding pad with caps %" GST_PTR_FORMAT, caps);
   gst_pad_set_caps (pad, caps);
   gst_caps_unref (caps);
 
@@ -1603,6 +1604,11 @@ gst_ffmpegdemux_sink_event (GstPad * sinkpad, GstObject * parent,
       /* eat this event for now, task will send eos when finished */
       gst_event_unref (event);
       goto done;
+    case GST_EVENT_STREAM_START:
+    case GST_EVENT_CAPS:
+      GST_LOG_OBJECT (demux, "dropping %s event", GST_EVENT_TYPE_NAME (event));
+      gst_event_unref (event);
+      goto done;
     default:
       /* for a serialized event, wait until an earlier data is gone,
        * though this is no guarantee as to when task is done with it.