diff --git a/daemon/call.c b/daemon/call.c
index 397d521c6..6900a2225 100644
--- a/daemon/call.c
+++ b/daemon/call.c
@@ -1765,8 +1765,11 @@ int monologue_offer_answer(struct call_monologue *monologue, GQueue *streams,
 		/* copy parameters advertised by the sender of this message */
 		bf_copy_same(&other_media->media_flags, &sp->sp_flags,
 				SP_FLAG_RTCP_MUX | SP_FLAG_ASYMMETRIC);
+
 		crypto_params_copy(&other_media->sdes_in.params, &sp->crypto);
 		other_media->sdes_in.tag = sp->sdes_tag;
+		if (other_media->sdes_in.params.crypto_suite)
+			MEDIA_SET(other_media, SDES);
 
 		bf_copy_same(&media->media_flags, &sp->sp_flags,
 				SP_FLAG_SEND | SP_FLAG_RECV);