diff --git a/daemon/call.c b/daemon/call.c
index 2f5636827..6ecbd2ebc 100644
--- a/daemon/call.c
+++ b/daemon/call.c
@@ -2044,7 +2044,7 @@ static void __disable_streams(struct call_media *media, unsigned int num_ports)
 }
 
 static void __rtcp_mux_set(const sdp_ng_flags *flags, struct call_media *media) {
-	if (flags->rtcp_mux_offer || flags->rtcp_mux_require)
+	if (flags->rtcp_mux_offer)
 		MEDIA_SET(media, RTCP_MUX);
 	else if (flags->rtcp_mux_demux)
 		MEDIA_CLEAR(media, RTCP_MUX);
diff --git a/daemon/call_interfaces.c b/daemon/call_interfaces.c
index 03694a2ae..a823e8716 100644
--- a/daemon/call_interfaces.c
+++ b/daemon/call_interfaces.c
@@ -831,6 +831,7 @@ static void call_ng_flags_rtcp_mux(str *s, unsigned int idx, helper_arg arg) {
 			out->rtcp_mux_reject = true;
 			break;
 		case CSH_LOOKUP("require"):
+			out->rtcp_mux_offer = true;
 			out->rtcp_mux_require = true;
 			break;
 		default: