diff --git a/ext/libav/gstavcodecmap.c b/ext/libav/gstavcodecmap.c
index 69a2cec7fc..966f5448d1 100644
--- a/ext/libav/gstavcodecmap.c
+++ b/ext/libav/gstavcodecmap.c
@@ -791,8 +791,7 @@ gst_ffmpeg_codecid_to_caps (enum CodecID codec_id,
       /* FIXME: context->sub_id must be filled in during decoding */
       caps =
           gst_ff_vid_caps_new (context, NULL, codec_id, encode,
-          "video/x-pn-realvideo", "systemstream", G_TYPE_BOOLEAN, FALSE,
-          "rmversion", G_TYPE_INT, version, NULL);
+          "video/x-pn-realvideo", "rmversion", G_TYPE_INT, version, NULL);
       if (context) {
         gst_caps_set_simple (caps, "format", G_TYPE_INT, context->sub_id, NULL);
         if (context->extradata_size >= 8) {