diff --git a/ext/srtp/gstsrtpdec.c b/ext/srtp/gstsrtpdec.c
index cbf4b0c2c5..b97094a243 100644
--- a/ext/srtp/gstsrtpdec.c
+++ b/ext/srtp/gstsrtpdec.c
@@ -787,6 +787,7 @@ gst_srtp_dec_sink_setcaps (GstPad * pad, GstObject * parent,
   ps = gst_caps_get_structure (caps, 0);
 
   if (gst_structure_has_field_typed (ps, "ssrc", G_TYPE_UINT) &&
+      gst_structure_has_field_typed (ps, "roc", G_TYPE_UINT) &&
       gst_structure_has_field_typed (ps, "srtp-cipher", G_TYPE_STRING) &&
       gst_structure_has_field_typed (ps, "srtp-auth", G_TYPE_STRING) &&
       gst_structure_has_field_typed (ps, "srtcp-cipher", G_TYPE_STRING) &&